Patent ID: 6584281
Filing Date: 2003-06-24
Classification: G03B

Abstract:
A lens-fitted photo film unit pre-loaded with an unexposed photo filmstrip and provided with photographic mechanisms for taking an exposure, said lens-fitted photo film unit comprising:a taking lens having a fixed focal length, through which picture frames are photographed in respective exposure areas in a constant size on said photo filmstrip; print format data prerecorded on said photo filmstrip prior to loading said photo filmstrip in said lens-fitted photo film unit, said print format data indicating that a predetermined size photographic print is to be produced from a predetermined central fragment of each of the picture frames by enlarging at a specific print magnification; and an optical viewfinder having a view field corresponding to said central fragment of the picture frame, and a magnification corresponding to said specific print magnification, so a subject observed in the view field corresponds in magnification as well as in angle of view to an image contained in a photographic print of the predetermined size as produced from said central fragment; wherein said specific print magnification is 2-times as large as a standard print magnification that is used for producing a photographic print in said predetermined size from a print area that is approximately equal to said exposure area, and the view field of said viewfinder corresponds to a central 10% to 16% of said exposure area.