Abstract:
A camera for successively capturing images of subjects, in which respective print quantity designations indicate the number of prints to be made for each one of the captured images, includes print cost totaller that calculates a print cost total which is a total cost of prints to be made for every one of the captured images, and updates the print cost total to make it current each time a print quantity designation is used for a particular captured image.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     Reference is made to commonly assigned copending application Serial No. 09/499,812, entitled CAMERA THAT RECORDS PRINT QUANTITY DESIGNATION ON FILM FOR EACH EXPOSURE, AND HAS PRINT QUANTITY TOTALLING and filed Feb. 8, 2000 in the name of Stephen G. Malloy Desormeaux, James W. Fulmer and Robert Hills. 
    
    
     FIELD OF THE INVENTION 
     The invention relates generally to the field of photography, and in particular to image capture cameras in which there is provided a print quantity designation of how many prints are to be made for each captured image. 
     BACKGROUND OF THE INVENTION 
     New cameras for the new worldwide “Advanced Photo System” (“APS”) can give you not just one print format, but a choice of three. For the classic proportions of a 35 mm print, the photographer chooses the “C” format. For a wider view, the full-frame “H” format is chosen. And for an even wider look, the “P” format is chosen to provide a sweeping panoramic print. The “APS” camera records the choice of print format magnetically and/or optically on one longitudinal edge of the filmstrip for each exposed frame on the filmstrip. The standard encodement on film for the “H” format is the binary 0, 0, i.e. no recorded data bits. The standard encodement on film for the “P” format is either the binary 0, 1 or the binary 1, 0, i.e. one recorded data bit. The standard encodement on film for the “C” format is the binary 1, 1, i.e. two recorded data bits. To make the prints, the photofinisher&#39;s equipment reads the optical or magnetic encodements on film and automatically prints each print in the encoded “C”, “H” or “P” format. A print having a “C” format is typically 4×6 inches. A print having a “H” format is typically 4×7 inches. And a print having a “P” format is typically 4×10 inches or 4×11.5 inches. No matter which format is selected in the camera, “C”, “H” or “P”, the exposed frames on the filmstrip are always in the “H” format. This allows re-prints to be made in any of the three formats rather than just in the selected format. 
     The “APS” camera can include a print quantity selector that is manually operated to provide a print quantity designation of how many prints are to be made for a particular exposed frame on the filmstrip. The print quantity designation is recorded magnetically on one longitudinal edge of the filmstrip for the particular exposed frame. 
     THE CROSS-REFERENCED APPLICATION 
     The cross-referenced application Serial No. 09/499,812, entitled CAMERA THAT RECORDS PRINT QUANTITY DESIGNATION ON FILM FOR EACH EXPOSURE, AND HAS PRINT QUANTITY TOTALLING discloses a camera for successively capturing images of subjects, which has a print quantity selector that can be manually operate d to provide various print quantity designations of the number of prints to be made for each one of the captured images. A print reset can be manually operated to change the print quantity designations used for the captured images simultaneously to the same print quantity designation. A print quantity totaller is connected to the print quantity selector and to the print reset for updating a print quantity total which is the sum of the number of prints to be made for the captured images, both when the print quantity selector is used and when the print reset is used. 
     SUMMARY OF THE INVENTION 
     A camera for successively capturing images of subjects, in which respective print quantity designations indicate the number of prints to be made for each one of the captured images, is characterized in that: 
     a print cost totaller calculates a print cost total which is a total cost of prints to be made for every one of the captured images, and updates the print cost total to make it current each time a print quantity designation is used for a particular captured image. 
     The print cost totaller calculates a print quantity total which is a sum of the number of prints to be made for every one of the captured images, updates the print quantity total to make it current each time a print quantity designation is used for a particular captured image, and applies the updated print quantity total and a unit print cost to calculate the print cost total. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a rear exploded perspective view of a dual film exposure, electronic exposure camera consistent with a preferred embodiment of the invention; 
     FIG. 2 is a block diagram of various components of the camera; 
     FIGS. 3,  4  and  5  is a flow chart depicting operation of the camera to illustrate the invention; 
     FIG. 6 is a flow chart of a one example of a subroutine for updating a print cost total; 
     FIG. 7 is a view of a display which shows the print cost total; and 
     FIG. 8 is a flow chart of another example of a subroutine for updating the print cost total. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The invention is disclosed as being embodied preferably in a motorized film advance camera. Because the features of a motorized film advance camera are generally known, the description which follows is directed in particular only to those elements forming part of or cooperating directly with the disclosed embodiment. It is to be understood, however, that other elements may take various forms known to a person of ordinary skill in the art. 
     Referring now to the drawings, FIGS. 1 and 2 show a motorized film advance camera  10  for exposing latent images on successive frames  12  of a known “Advanced Photo System” (“APS”) filmstrip  14 . The filmstrip  14  has a transparent magnetic overlay which gives it magnetic recording capacity to store various user-selected information along a track  16  adjacent each exposed film frame  12 , and it is normally housed in an opaque film cartridge  18 . Typically, the filmstrip  14  is available in 15-exposure, 25-exposure, and 40-exposure lengths, and the user-selected information can differ from frame-to-frame. 
     The camera  10  has an opaque main body part  20  that is housed between a pair of connected opaque front and rear cover parts  22  and  24 . See FIG.  1 . The main body part  20  has a cartridge receiving chamber  26  for receiving the film cartridge  18  through a bottom opening (not shown) when a bottom door  28  is pivoted open, a rearwardly open backframe opening  30  at which the respective frames  12  of the filmstrip  14  are temporarily positioned one at a time to be exposed, and an exposed film take-up chamber  32  that contains a film take-up spool  34  which is incrementally rotated following each film exposure to wind the most-recently exposed one of the film frames onto an exposed film roll  36  on the spool (and to position a fresh unexposed film frame at the backframe opening  30 ). When the film take-up spool  34  is incrementally rotated, the filmstrip  14  is advanced forward one frame increment which is slightly greater than a frame width. A drive motor  38  resides inside the film take-up spool  34  for incrementally rotating the spool to advance the filmstrip  14  forward one frame increment, and its operation is controlled by a known microcomputer  40 . When substantially the entire length of the filmstrip  14  is exposed, i.e. the total number of available film frames  12  are exposed, a spindle (not shown) which projects into a cavity  42  in a top end  44  of a film spool inside the film cartridge  18  is continuously rotated via the motor  38  and a suitable gear train (not shown) to rewind the exposed film length rearward into the cartridge. 
     To magnetically record the user-selected information along the track  16  adjacent each exposed film frame  12 , the motor  38  must be actuated after the exposed film length is rewound rearward into the film cartridge  18  to continuously rotate the film take-up spool  34  in order to advance the exposed film length forward. Then, the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the film length with the recorded information rearward into the cartridge, and the door  28  is pivoted open to remove the cartridge from the cartridge receiving chamber  26 . 
     A known electronic flash unit  46  for flash assisted exposures is flipped up from partially covering the front cover part  22  to uncover a taking lens (not shown) preparatory to using the camera  10 . See FIG.  1 . Flipping up the flash unit  46  closes a normally open power switch  48  connected to the microcomputer  40  to electrically power “on” the camera  10 . See FIG.  2 . 
     A normally open cartridge present switch  50  in the cartridge receiving chamber  26  and connected to the microcomputer  40  is closed when the film cartridge  18  is present in the chamber and the door  28  is closed. See FIG.  2 . If the camera  10  is powered “on” and the cartridge present switch  50  is open, a visible no-cartridge warning  52  shown in FIG. 3 is shown in a known status display  54  such as a black and white LCD connected to the microcomputer  40 . The status display  54  is turned “on” when the power switch  48  is closed, and is located behind a window  56  in the rear cover part  24 . See FIG.  1 . If the camera  10  is powered “on” and the cartridge present switch  50  is closed, a visible cartridge loaded indication (not shown) is shown in the status display  54 . 
     A known electronic image sensor  58 , for example a CCD sensor with integrated shuttering capability or a CMOS sensor with integrated shuttering capability, is connected to the microcomputer  40  to form a different electronic image each time one of the unexposed film frames  12  is exposed. The respective electronic images correspond to the latent images on the exposed film frames  12 , are each stored in a memory  60  connected to the microcomputer  40 , and can be shown one at a time in a known image display  62  such as a color LCD connected to the microcomputer. The image display  62  is located next to the status display  54 , behind the window  56  in the rear cover part  24 . The memory  60  has storage capacity for storing at least 40 electronic images, since the filmstrip  14  is available in 15-exposure, 25-exposure, and 40-exposure lengths. 
     A viewfinder  64  for viewing a subject to be photographed is located on the main body part  20 . See FIG.  1 . 
     To take a picture, a shutter release button  66  on the front cover part  22  is manually depressed which in turn closes a normally open release switch  68  connected to the microcomputer  40 . See FIGS. 1 and 2. The closed switch  68  triggers momentary opening of a known normally closed shutter  70  to expose a latent image on the film frame  12  at the backframe opening  30 , and to excite the electronic image sensor  58  to form an electronic image substantially simultaneously with exposure of the latent image. The taking lens (not shown) can be used to focus an image of the subject being photographed, for the electronic image sensor  58  as well as for the filmstrip  14 , or a separate lens an be provided for the electronic image sensor. These alternatives are indicated in prior art U.S. Pat. No. 5,710,954 issued Jan. 20, 1998. 
     A magnetic head  72  is mounted within an opening  74  in a film pressure platen  76  for magnetically recording the user-selected information along the track  16  adjacent each one of the exposed film frames  12 . The film pressure platen  76  serves to support each film frame  12  flat for exposure at the backframe opening  30 . 
     The user-selected information, as is known, can be a selected print quantity number preferably ranging from 0-9 prints, a selected (optional) print title in English and other languages, a selected (optional) print exposure correction +/−, and a selected “APS” print format “C” (classic), “H” (HDTV) or “P” (panoramic), for example. A “C” format print is usually 4×6 inches, a wider “H” format print is often 4×7 inches, and a much wider “P” format print is either 4×10 inches or 4×11.5 inches. The selected print quantity number, print title, and print exposure correction, and the selected “APS” print formats “C”, “H” or “P”, for every one of the exposed film frames  12  are stored in the memory  60 . Individual visible indications of the selected print quantity number, print title, and print exposure correction for any one of the exposed film frames  12  can be seen in the status display  54 . A visible indication of the selected “APS” print format “C”, “H” or “P” for any one of the exposed film frames  12  can be seen in the image display  62  (preferably superimposed on the electronic image shown in the image display). Respective print quantity, title and exposure correction buttons  78 ,  80  and  82  are provided on the rear cover part  24 , and when individually manually depressed one or more times close normally open print quantity, title and exposure correction switches  84 ,  86  and  88  the same number of times. See FIGS. 1 and 2. The print quantity, title and exposure correction switches  84 ,  86  and  88  are connected to the microcomputer  40  in order to add new print quantity number, title and exposure correction designations to the memory  60  for a most-recently exposed one of the film frames  12  and to change the print quantity number, title and exposure correction designations stored in the memory  60  for any one of the exposed film frames  12  to new designations for the same exposed film frame. A format selection button  90  is provided on a top plate  92 , and when manually depressed one or more times closes a normally open C, H, P switch  94  the same number of times. The C, H, P switch  94  is connected to the microcomputer  40  in order to add a new C, H or P designation to the memory  60  for a most-recently exposed one of the film frames  12  and to change the C, H or P designation stored in the memory  60  for any one of the exposed film frames  12  to a new designation for the same exposed film frame. To enter the newly selected information in the memory  60 , an enter button  96  on the rear cover part  24  must be manually depressed which in turn closes a normally open enter switch  98  connected to the microcomputer  40 . 
     If the print quantity switch  84  is not closed one-to-ten times (to capacity for storing at least  40  electronic images, since the filmstrip  14  is available designate the print quantity number to be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 0 prints) for a most-recently exposed one of the exposed film frames  12 , the default print quantity number for the most-recently exposed frame is “1”, or alternatively it can be the same as the last-made print quantity selection. The default print quantity “1” can be stored in the memory  60 . 
     An exposed frame selector button  100  is provided on the rear cover part  24 , and when manually depressed one or more times closes a normally open exposed frame selector switch  102  connected to the microcomputer  40  the same number of times, to change the electronic image and the “APS” print format “C”, “H” or “P” shown in the image display  62  for any one of the exposed film frames  12 , and to change the print quantity number, print title, and print exposure correction shown in the status display  54  for the same exposed film frame, to the electronic image and the user-selected information for another one of the exposed film frames. This is possible because the electronic images that match the exposed film frames, and the user-selected information for the exposed film frames, are stored in the memory  60 . Thus, one can effectively scroll through the electronic images and the user-selected information stored in the memory  60  for the exposed film frames  12 , and successively see the electronic images and the user-selected information for any one of the exposed film frames in the status and image displays  54  and  62 . This is done in preparation for manually depressing the print quantity, title and exposure correction buttons  78 ,  80  and  82  and the format selection button  90  to change the user-selected information stored in the memory  60  for any one of the exposed film frames  12 . 
     A pair of identical film perforation sensors  104  and  106  for sensing successive pairs of film perforations  108  and  110  in the filmstrip  14  are mounted in respective pockets  112  and  114  in the film pressure platen  76  and are connected to the microcomputer  40 . The film perforation sensors  104  and  106 , as is known, are used via the microcomputer  40  to decrement a frame count (the number of available film frames  12 ) stored in the memory  60  by “1”, each time the filmstrip  14  is advanced forward a frame increment and the most-recently exposed one of the film frames is wound onto the exposed film roll  36  on the film take-up spool  34 . The frame count begins with “15”, “25” or “40” depending whether the filmstrip  40  has a 15-exposure, 25-exposure, or 40-exposure length. 
     A verify (print preview) button  116  is provided on the rear cover part  24 , and when manually depressed closes a normally open verify switch  118  connected to the microcomputer  40 . See FIGS. 1 and 2. The closed verify switch  118  causes the electronic image and the “AP S” print format “C”, “H” or “P” stored in the memory  60  for the most-recently exposed one of the film frames  12  to be shown in the image display  62 , and it causes the print quantity number, print title, and print exposure correction stored in the memory for the same exposed film frame to be shown in the status display  54 . If, however the exposed frame selector switch  102  had been closed to change the electronic image and the “APS” print format “C”, “H” or “P” shown in the image display  62  and to change the print quantity number, print title, and print exposure correction shown in the status display  54 , from that for the most-recently exposed one of the film frames to that for an earlier exposed one of the film frames, then the closed verify switch  118  causes the electronic image and the user-selected information for the earlier exposed film frame to be shown in the displays. 
     Print Cost Total 
     A unit print cost selector button  120  is provided on the rear cover part  24 , and when manually depressed one-to-three times quickly in succession closes a normally open unit print cost switch  122  connected to the microcomputer  40  the same number of times, to select which ones of the “APS” print formats “C”, “H” and “P” are to be assigned individual unit print costs. The “unit print cost” is the photofinisher&#39;s cost per print to the consumer. Pressing the unit cost selector button  120  only once and then pausing selects the “C”-print format. Pressing the unit cost selector button  120  twice and then pausing selects the “H”-print format. Pressing the unit cost selector button  120  three times and then pausing selects the “T”-print format. Then, when the unit print cost button  120  is continuously held depressed to maintain the unit cost switch  122  closed, visible indications of increasing unit print costs, for example from $0.01 to $0.99, successively appear in the status display  54  together with a visible indication of the selected “C”-, “H”- or “P”-print format. Releasing the unit print cost button  122  selects the unit print cost (which is visible in the status display  54  at that moment) for the selected print format. The selected unit print cost is stored in the memory  60  for the selected “C”-, “H”- or “P”-print format. 
     After the unit print cost is selected for a first one of the “APS” print formats and is stored in the memory  60 , the sequence can be repeated to store a selected unit print cost for a second one of the “APS” print formats in the memory. Then, the sequence can be repeated to store a selected unit print cost for the remaining one of the “APS” print formats in the memory  60 . An example of a unit print cost for each “C” format print is $0.10, for each “H” format print is $0.16, and for each “4” format print is $0.46. 
     Alternatively, the selected unit print cost stored in the memory  60  can be the same for each one of the “C”-, “H”- and “P”-print formats. In this instance, the unit print cost selector button  120  must be manually depressed four times quickly in succession to close the unit print cost switch  122  the same number of times, to select that the three print formats be assigned the same unit print cost. Then, when the unit print cost button  120  is continuously held depressed to maintain the unit cost switch  122  closed, visible indications of increasing unit print costs, for example from $0.01 to $0.99, successively appear in the status display  54  together with a visible indication of the three print formats. Releasing the unit print cost button  122  selects the unit print cost (which is visible in the status display  54  at that moment) for the three print formats. The selected unit print cost is stored in the memory  60 . An example of an identical unit print cost for each one of the “C”-, “H”- and “P”-print formats is $0.28 per print. 
     The microcomputer  40  operates as a print cost totaller for calculating a print cost total which is a total cost of prints to be made for every one of the exposed film frames  12 . The print cost total existing at any given time is stored in the memory  60  either (1) as the sum of respective print cost subtotals stored in the memory for the “C”-, “H”- and “P”-print formats, as shown in the status display  54  in FIG. 7, when a different unit print cost is selected for each one of the three print formats, or (2) only as a total amount (no subtotals) for the “C”-, “H”- and “P”-print formats, when the selected unit print cost is identical for the three print formats. The print cost total stored in the memory  60  is updated via the microcomputer  40  each time a print quantity number is used for a particular one of the exposed film frames  12 . 
     When the microcomputer  40  calculates the print cost total, it must first determine a print quantity total which is the sum (addition) of the number of prints to be made for every one of the exposed film frames  12 . The print quantity total existing at any given time is stored in the memory  60  either (1) as the sum of respective print quantity subtotals stored in the memory for the “C”-, “H”- and “P”-print formats, as shown in the status display  54  in FIG. 7, when a different unit print cost is selected for each one of the three print formats, or (2) only as a total amount (no subtotals) for the “C”-, “H”- and “P”-print formats, when the selected unit print cost is identical for the three print formats. The print quantity total stored in the memory  60  is updated via the microcomputer  40  each time a print quantity number is used for a particular one of the exposed film frames  12 . 
     If the separate print quantity and print cost totals existing at any given time are stored in the memory  60  as individual sums of respective print quantity subtotals and respective print cost subtotals stored in the memory for the “C”-, “H”- and “T”-print formats, as shown in the status display  54  in FIG. 7, because a different unit print cost is selected for each one of the three print formats, the separate print quantity and print cost totals are updated via the microcomputer  40  according to a print cost total subroutine shown in FIG.  6 . If the separate print quantity and print cost totals existing at any given time are stored in the memory  60  only as individual total amounts (no subtotals) for the “C”-, “H”- and “P”-print formats, because the selected unit print cost stored in the memory is identical for the three print formats, the print quantity and print cost totals are updated via the microcomputer  40  according to a print cost total subroutine shown in FIG.  8 . 
     Operation 
     The operation of the camera  10  to illustrate the invention is shown in a flow chart in FIGS. 3-5. 
     1. Starting at FIG. 3, when the camera  10  is electrically powered “on” by flipping up the electronic flash unit  46 , the status display  54  is simultaneously turned “on.” The status display  54  shows, among other things, the frame count (the number of available film frames  12 ) stored in the memory  60 , as well as the print total in the memory. 
     2. If then in FIG. 3 the cartridge present switch  50  remains open because no film cartridge  18  is present in the cartridge receiving chamber  26 , the no-cartridge warning  52  is provided in the status display  54 . 
     3. If conversely in FIG. 3 the cartridge present switch  50  is closed because the film cartridge  18  is present in the cartridge receiving chamber  26 , the memory  60  is interrogated to determine whether the frame count is greater than “0”. 
     4. If then in FIG. 3 the frame count in the memory  60  is “0”, which indicates that the final available one of the film frames  12  has been exposed, i.e. there are no film frames remaining for exposure, the number “0” appears in the status indicator  54 . 
     5. If conversely in FIG. 3 the frame count in the memory  60  is greater than “0”, for example “23”, which indicates that there are twenty-three film frames  12  available for exposure, the number “23” appears in the status indicator  54 . 
     6. If next in FIG. 3 the verify switch  118  is closed, the image display  62  is turned “on” in FIG. 4 to show the electronic image stored in the memory  60  corresponding to the latent image on the most-recently exposed one (or alternatively an earlier exposed one) of the film frames  12 . Also, the status display  54  now shows the user-selected information stored in the memory  60  for the same exposed film frame, except that the visible indication of the selected “APS” print format “C”, “H” or “P” is shown in the image display  62  superimposed on the electronic image. 
     7. If conversely in FIG. 3, the verify switch  118  remains open, and the release switch  68  is not closed within an allotted time, e.g. 150 seconds, determined by a timer  124  in the microcomputer  40 , the camera  10  is powered “off” for battery conservation. 
     8. If conversely in FIG. 3, the verify switch  118  remains open, and the release switch  68  is closed within the allotted time, e.g. 150 seconds, determined by the timer  124  in the microcomputer  40 , because a picture is being taken, a latent image is exposed on the film frame  12  at the backframe opening  30  and the electronic image sensor  58  is excited to form an electronic image which matches the latent image on the newly exposed frame. 
     9. Then in FIG. 4 the motor  38  is actuated to incrementally rotate the film take-up spool  34  in order to advance the filmstrip  14  forward a frame increment and wind the most-recently exposed one of the film frames  12  onto the exposed film roll  36  on the spool. Also, the electronic image and the user-selected information for the most-recently exposed frame  12  are stored in the memory  60 , and the frame count stored in the memory is decremented by “1”, for example to “22”. 
     10. Then, in FIG. 4 either one of the print cost total subroutines shown in FIGS. 6 and 8 (and separately described later), are performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60  for every one of the film frames  12  exposed so far. 
     11. If next in FIG. 4 the frame count in the memory  60  is greater than “0”, the verify switch  114  can be closed. 
     12. If then in FIG. 4 the verify switch  118  is not closed within the allotted time, e.g. 150 seconds, determined by the timer  124  in the microcomputer  40 , or alternatively the release switch  68  is not closed within the same time, the camera  10  is powered “off” for battery conservation. 
     13. If conversely in FIG. 4 the verify switch  118  is closed within the allotted time (as in FIG.  3 ), e.g. 150 seconds, determined by the timer  124  in the microcomputer  40 , the image display  62  is turned “on” to show the electronic image stored in the memory  60  corresponding to the latent image on the most-recently exposed one (or alternatively an earlier exposed one) of the film frames  12 . Also, the status display  54  now shows the user-selected information for the same exposed film frame, except that the visible indication of the selected “APS” print format “C”, “H” or “P” is shown in the image display  62  superimposed on the electronic image. 
     14. If next in FIG. 4 the exposed frame selector switch  102  is not closed within the allotted time, e.g. 150 seconds, determined by a timer  124  in the microcomputer  40 , and none of the user-selected information switches  84 ,  86 ,  88  and  94  are closed within a brief time, e.g. 10 seconds, determined by the timer, the image display  62  is turned “off”. The camera  10  including the status display  54  remains “on.” 
     15. If conversely in FIG. 4 the exposed frame selector switch  102  is not closed within the allotted time, e.g. 150 seconds, determined by the timer  124  in the microcomputer  40 , and at least one of the user-selected information switches  84 ,  86 ,  88  and  94  is closed within the brief time, e.g. 10 seconds, determined by the timer, then when the enter switch  98  is closed, the electronic image and the new selected information for the most-recently exposed one of the film frames  12  are stored in the memory  60  in place of the previously stored information for the same exposed film frame, one of the print cost total update subroutines shown in FIGS. 6 and 8 (and separately described later) are performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60 , and the image display  62  is turned “off”. 
     16. If alternatively in FIG. 4 the exposed frame selector switch  102  is closed within the allotted time, e.g. 150 seconds, the electronic image and the user-selected information stored in the memory  60  for any one of the earlier exposed film frames (not the most-recently exposed film frame) are shown in the status and image displays  54  and  62  in place of the previously shown image and information for another one of the exposed film frames. Then, when at least one of the user-selected information switches  84 ,  86 ,  88  and  94  is closed within the brief time, e.g. 10 seconds, and the enter switch  98  is closed, the electronic image and the new selected information for the earlier exposed film frame  12  are stored in the memory  60  in place of the previously stored information for the same exposed film frame, one of the print cost total update subroutines shown in FIGS.  6  and  8  (and separately described later) may be performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60 , and the image display  62  is turned “off”. 
     17. If in FIG. 4 the frame count in the memory  60  is “0”, the image display  62  is turned “on” to show the electronic image stored in the memory  60  corresponding to the latent image on the final exposed one of the film frames  12 . Also, the status display  54  now shows the user-selected information for the same exposed film frame, except that the visible indication of the selected “APS” print format “C”, “H” or “P” is shown in the image display  62  superimposed on the electronic image. The image display  62  is turned “on” in this instance (as compared with the other instance in FIG. 4 that it is turned “on”) without having to first close the verify switch  118 . 
     18. If next in FIG. 4 the exposed frame selector switch  102  is not closed within the allotted time, e.g. 150 seconds, and none of the user-selected information switches  84 ,  86 ,  88  and  94  are closed within a brief time, e.g. 10 seconds, the image display is turned “off” as indicated in FIG. 5, and the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the motor  38  is actuated to continuously rotate the film take-up spool  34  in order to advance the exposed film length forward, and the magnetic head  72  magnetically records the user-selected information stored in the memory  60  for each exposed film frame on the exposed film length along the track  16  adjacent each exposed film frame. Then, the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the door  28  is pivoted open to remove the film cartridge  18  from the cartridge receiving chamber  26 . When the film cartridge  18  is removed, the cartridge present switch  50  opens and the microcomputer  40  changes the existing print cost and print quantity totals stored in the memory  60  to “0”. Also, any existing print cost and print quantity subtotals stored in the memory  60  are changed to “0”. 
     19. If conversely in FIG. 4 the exposed frame selector switch  102  is not closed within the allotted time, e.g. 150 seconds, and at least one of the user-selected information switches  84 ,  86 ,  88  and  94  is closed within the brief time, e.g. 10 seconds, the image display  62  remains “on.” Then when the enter switch  98  is closed, one of the print cost total update subroutines shown in FIGS. 6 and 8 (and separately described later) may be performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60 . If the verify switch  118  is not closed within the allotted time, e.g. 150 seconds, the image display  62  is turned “off” as indicated in FIG. 5, and the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the motor  38  is actuated to continuously rotate the film take-up spool  34  in order to advance the exposed film length forward, and the magnetic head  72  magnetically records the user-selected information stored in the memory  60  for each exposed film frame on the exposed film length along the track  16  adjacent each exposed film frame. Then, the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the door  28  is pivoted open to remove the film cartridge  18 . When the film cartridge  18  is removed, the cartridge present switch  50  opens and the microcomputer  40  changes the existing print cost and print quantity totals stored in the memory  60  to “0”. Also, any existing print cost and print quantity subtotals stored in the memory  60  are changed to “0”. 
     20. If alternatively in FIG. 4 the exposed frame selector switch  102  is closed within the allotted time, e.g. 150 seconds, the electronic image and the user-selected information stored in the memory  60  for any one of the earlier exposed film frames (not the most-recently exposed film frame) is shown in the status and image displays  54  and  62 . Then, when at least one of the user-selected information switches  84 ,  86 ,  88  and  94  is closed within the brief time, e.g. 10 seconds, and the enter switch  98  is closed, one of the print cost total update subroutines shown in FIG. 6 (and separately described later) may be performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60 . If the verify switch  118  is not closed within the allotted time, e.g. 150 seconds, the image display  62  is turned “off” as indicated in FIG. 5, and the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the motor  38  is actuated to continuously rotate the film take-up spool  34  in order to advance the exposed film length forward, and the magnetic head  72  magnetically records the user-selected information stored in the memory  60  for each exposed film frame on the exposed film length along the track  16  adjacent each exposed film frame. Then, the motor  38  is actuated to continuously rotate the film spool inside the film cartridge  18  in order to rewind the exposed film length rearward into the cartridge. Then, the door  28  is pivoted open to remove the film cartridge  18 . When the film cartridge  18  is removed, the cartridge present switch  50  opens and the microcomputer  40  changes the existing print cost and print quantity totals stored in the memory  60  to “0”. Also, any existing print cost and print quantity subtotals stored in the memory  60  are changed to “0”. 
     21. If conversely in FIG. 4 the verify switch  118  is closed within the allotted time, e.g. 150 seconds, go back to step  18  above. 
     Print Cost Total Update Subroutine—FIG.  6   
     The print cost total update subroutine shown in FIG. 6 is performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60  for every one of the film frames  12  exposed so far. This version is performed when the existing print cost and print quantity totals are stored in the memory  60  as individual sums of respective print quantity subtotals and respective print cost subtotals stored in the memory for the “APS” “C”-, “H”- and “P”-print formats (because a different unit print cost is selected for each one of the three print formats). See the status display  54  in FIG.  7 . 
     1. First in FIG. 6 the microcomputer  40  reads the single designated print quantity number 0-9 and the single designated “APS” print format “C”, “H” or “P” stored in the memory  60  for a particular exposed film frame  12  (either a most-recently exposed film frame or an earlier exposed film frame). Also, the microcomputer  40  reads the single designated unit print cost $0.01-$0.99 stored in the memory  60  for the same “C”-, “H”- or “P”-print format, and it reads the existing C-, H- and P-print quantity and print cost subtotals stored in the memory for the respective “C”-, “H”- and “P”-print formats. See the status display  54  in FIG.  7 . 
     2. Next in FIG. 6 the microcomputer  40  performs its calculations to update the existing print quantity and print cost totals to new print quantity and print cost totals. First the single designated print quantity number 0-9 and the existing C-, H- or P-print quantity subtotal for the single designated “C”-, “H”- or “P”-print format are summed to obtain a new C-, H- or P-print quantity subtotal (in place of the existing print quantity subtotal) for the same “C”-, “H”- or “P” print format. If, for example, the existing C-, H- or P-print quantity subtotal is “3” for three film frames  12  exposed so far, and the designated print quantity number for a most-recently exposed film frame is “2”, the new C-, H- or P-print quantity subtotal would be 3 plus 2=5. If, alternatively, the existing C-, H- or P-print quantity subtotal is “6” for three film frames  12  exposed so far, and the designated print quantity number for an earlier exposed film frame has been reduced from “2” to “1” (via the print quantity switch  84 ), the new C-, H- or P-print quantity subtotal would be 6 minus 15. Then, the new print quantity subtotal and the unit print cost for the single designated “C”-, “H”- or “P”-print format are multiplied to obtain a new print cost subtotal (in place of the existing print cost subtotal) for the same “C”-, “H”- or “P”-print format. If, for example, the new print quantity subtotal is “5” and the unit print cost is $0.10 per print, the new print cost subtotal is $0.50. See FIG.  7 . The new print quantity subtotal and the remaining two existing print quantity subtotals are summed to obtain an updated print quantity total. The new print cost subtotal and the remaining two existing print cost subtotals are summed to obtain an updated print cost total. 
     3. Then in FIG. 6 the print quantity and print cost subtotals and totals are changed in the memory  60  and the status display  54  is changed to reflect this update. 
     Print Cost Total Update Subroutine—FIG.  8   
     The print cost total update subroutine shown in FIG. 8 is performed via the microcomputer  40  to update the existing print cost and print quantity totals stored in the memory  60  for every one of the film frames  12  exposed so far. This version is performed when the existing print quantity and print cost totals are stored in the memory  60  only as individual total amounts (no subtotals) for the “APS” “C”-, “H”- and “P”-print formats (because the selected unit print cost stored in the memory is identical for the three print formats). 
     1. First in FIG. 8 the microcomputer  40  reads the single designated print quantity number 0-9 and the single designated “APS” print format “C”, “H” or “T” stored in the memory  60  for a particular exposed film frame  12  (either a most-recently exposed film frame or an earlier exposed film frame). Also, the microcomputer  40  reads the one designated unit print cost $0.01-$0.99 stored in the memory which is the same for the “C”-, “H”- and “P”-print formats, and it reads the existing print quantity total stored in the memory for the three print formats. 
     2. Next in FIG. 8 the microcomputer  40  performs its calculations to update the existing print quantity and print cost totals to new print quantity and print cost totals. First the single designated print quantity number 0-9 and the existing print quantity total are summed to obtain a new print quantity subtotal which is the updated print quantity total. If, for example, the existing print quantity total is “3” for three film frames  12  exposed so far, and the designated print quantity number for a most-recently exposed film frame is “2”, the new print quantity total would be 3 plus 2=5. If, alternatively, the existing print quantity subtotal is “6” for three film frames  12  exposed so far, and the designated print quantity number for an earlier exposed film frame has been reduced from “2” to “1” (via the print quantity switch  84 ), the new print quantity total would be 6 minus 1=5. Then, the new print quantity total and the unit print cost for the “C” “H”- and “P”-print formats are multiplied to obtain an updated print cost total for the three print formats. If, for example, the new print quantity total is “5” and the unit print cost is $0.28 per print, the new print cost total is $1.40. 
     3. Then in FIG. 6 the print quantity and print cost totals are changed in the memory  60  and the status display  54  is changed to reflect this update. 
     The invention has been described with reference to a preferred embodiment. However, it will be appreciated that variations and modifications can be effected by a person of ordinary skill in the art without departing from the scope of the invention. For example, when in FIG. 4 the enter switch  98  is not closed within an allotted time, e.g. 150 seconds, determined by the timer  124  in the microcomputer  40 , and alternatively the release switch  68  is not closed within the same time, the camera  10  could be powered “off” for battery conservation. 
     PARTS LIST 
       10 . camera 
       12 . film frames 
       14 . filmstrip 
       16 . track 
       18 . film cartridge 
       20 . main body part 
       22 . front cover part 
       24 . rear cover part 
       26 . cartridge receiving chamber 
       28 . bottom door 
       30 . backframe opening 
       32 . exposed film take-up chamber 
       34 . film take-up spool 
       36 . exposed film roll 
       38 . drive motor 
       40 . microcomputer 
       42 . spool cavity 
       44 . spoolend 
       46 . electronic flash unit 
       48 . power switch 
       50 . cartridge present switch 
       52 . no-cartridge warning 
       54 . status display 
       56 . window 
       58 . electronic image sensor 
       60 . memory 
       62 . image display 
       64 . viewfinder 
       66 . shutter release button 
       68 . release switch 
       70 . shutter 
       72 . magnetic head 
       74 . opening 
       76 . film pressure platen 
       78 . print quantity button 
       80 . print title button 
       82 . exposure correction button 
       84 . print quantity switch 
       86 . print title switch 
       88 . exposure correction switch 
       90 . format selection button 
       92 . top plate 
       94 . C, H, P switch 
       96 . enter button 
       98 . enter switch 
       100 . exposed frame selector button 
       102 . exposed frame selector switch 
       104 . film perforation sensor 
       106 . film perforation sensor 
       108 . film perforation 
       110 . filn perforation 
       112 . pocket 
       114 . pocket 
       116 . verify button 
       118 . verify switch 
       120 . unit print cost selector button 
       122 . unit print cost switch 
       124 . timer