HDTenEightyP/NetNews huggingface dataset:
From: srm@comp.lancs.ac.uk (Simon Monk)
Newsgroups: rec.photo
Subject: Re: AF Camera doesn't focus with 2x Teleconverter
Date: 14 Aug 92 13:15:33 GMT
Organization: Department of Computing at Lancaster University, UK.

In article <1992Aug11.181435.20893@clark.edu> gsnow@clark.edu (Gary Snow) writes:
>In article <3830304@hpldsla.sid.hp.com> tonya@hpldsla.sid.hp.com (Tony Arnerich) writes:
>>rajiv@hilltop.mitre.org (Rajiv Kohli) writes:
>>
>>It obviously doesn't interface with the AF mechanisms. As far as I know,
>>there aren't any teleconverters that pass the focus motor connection
>>through. There are a few "autofocus adapters" that happen to have a
>>1.6X or so magnification as well, but the lens stays focused manually
>>and the adapter has a limited focus range.
>>
>>Basically, Kenko is guilty of merchandising a product in such a way as
>>to let you infer that it does more than it really can. I think you
>>should return it for a refund. If Minolta makes what you need, buy it.
>>It will probably work. It will cost more; that's because it will do more.
>
>Not so at all.  Most do interface correctly with the camera/lens.  Its the
>lack of adequate light when the lens is fully open that doesn't allow the
>camera to auto-focus.  If he had a faster lens (faster then f/4 or f/5.6)
>the camera would autofocus properly.
>
>Gary
>
>-- 
>-----
>Gary Snow
>uunet!clark!gsnow  or  gsnow@clark.edu

Gary is right, I have a 2x for my EOS 650 and I have the same problem.
However dont throw it away because in bright conditions there is no
problem. I use my x2 with my 70-210 f/4 lens, loosing two stops of light
makes the effective aperture f/8, so if you were using a 500mm mirror lens
(usually f/8) you would have just the same foculsing problems.

Simon Monk.
From: trentf@ultra.com (Trent Fierro)
Newsgroups: rec.photo
Subject: Minolta 3Xi
Date: 13 Aug 92 15:51:30 GMT
Reply-To: trentf@ultra.com ()
Distribution: usa
Organization: Ultra Network Technologies

Can anyone tell me their opinion on the differences between
a 3Xi and a 3SPXi camera? (hopefully I have the model numbers
correct)

So far I've seen the 3Xi, but I haven't seen the SPX. I was told
you don't get a pop-up flash on the SPX, but instead you get a
better mountable flash than with the add-on 3Xi flash....

Looking for truth..

Thanks in advance

-- 
***********************************************************************
Trent Fierro          trentf@ultra.com       	 Voice:  (408) 922-0100 
UltraNetwork Technologies ...!ames!ultra!trentf  FAX  :  (408) 433-9287 
101 Daggett Drive         			 San Jose, CA 95134
From: graham@ug.cs.dal.ca (Michael Graham)
Newsgroups: rec.photo
Subject: Re: Grainy B&W film?
Date: 19 Aug 92 15:34:55 GMT
Organization: Math, Stats & CS, Dalhousie University, Halifax, NS, Canada

In article <229@metran.UUCP> jay@metran.UUCP (Jay Ts) writes:
>sog@craycos.com (Steve Gombosi) writes:
>: In article <1992Aug14.164047.21429@newshost.unh.edu> K_LEPA@unhh.unh.edu (Kristen   Lepa) writes:
>: >Is there a B&W film out there that is inherently grainy?  I know it
>: >would help if I got a very fast film, but I like to work with slower
>: >speeds.  
>: 
>: Hmmm...why not use really fast film and a neutral density filter?
>
Or - if you are printing your own stuff, use a small (20-35mm) lens, have
your subject take up 1/4th (?) of the frame and then blow up the image as
much as possible.

mike

-- 
**************************************************************************
Bjork sounds so good, that if I were a singer trying to make a living today    
I'd shoot myself in desperation of ever equalling her  -  Barbara Ellen, NME
From: martin@wangzot.cs.utk.edu (Timothy A. Martin)
Newsgroups: rec.photo
Subject: Canon FD 135mm 2.0 question
Date: 19 Aug 92 16:30:44 GMT
Reply-To: martin@wangzot.cs.utk.edu (Timothy A. Martin)
Organization: The University of Tennessee, Knoxville
NNTP-Posting-Host: wangzot.cs.utk.edu


	Does anybody have any experience
with this lens?  I am considering purchasing
one, but wanted to know what people thought
about its optical qualities first.  Have
you noticed any distortion at 2.0?

General thoughts?
Thanks.

-- 
	Tim Martin <martin@cs.utk.edu>
	The University of Tennessee, Knoxville
	CS Department Sys Admin
Newsgroups: rec.photo
From: mgb@linus.mitre.org (Michael Butler)
Subject: Fuji's E-6 Labs
Organization: Research Computer Facility, MITRE Corporation, Bedford, MA
Date: Mon, 17 Aug 1992 18:39:33 GMT

    Fuji just mailed me someone else's slides (first time in several
hundred rolls!).  I had mailed my film to the Harrison, NJ lab, the
processed slides were returned in an Anaheim, CA envelope with a
Phoenix, AZ postmark.  While I was on the phone with them I asked
about the Harrison, Anaheim, Phoenix connection.  Here's the low-down:

    Fuji has closed both the Harrison and Anaheim E-6 process lines
permanently.  Slides sent to either of these labs are forwarded to
Phoenix for processing.  Since they still have an abundance of Anaheim
envelopes, the Phoenix plant is using them up...

    The Phoenix lab's address (which, I had to ask for but was then
encouraged to use) is 

	P.O. Box 52008
	Phoenix, AZ 85072

    Fuji has also had their old toll-free number, (800)526-9030,
disconnected!  When I finally got Fuji in Phoenix, I was told that
(800)279-4419 will work, but I haven't tried it out yet...  You might
want to save this number since directory assistance did not have it!

    On a related note...  Processed film is presently taking an
average of four to five weeks for delivery (i.e. from date of postmark
to appearance in my mail box).  I suspect that the "nonstandard"
envelopes are getting "special handling" at the post office.  Is
anyone else having this problem?


-Mike Butler
 mgb@vlsi.mitre.org
From: robert@sys.sweden.dg.com (Robert Claeson)
Newsgroups: rec.photo
Subject: Re: Cibachrome in Jobo?
Date: 12 Aug 92 06:43:53 GMT
Organization: Data General AB, Akalla, Sweden

In article <mab.713062310@duvel>, mab@duvel.princeton.edu (Matt Blaze) writes:

> I'm thinking of getting one of the Jobo manual processors, either
> the CPE-2+ or the CPA-2.  I'd like to use it for E6 and B&W processing
> as well as Cibachrome print processing.  According to the catalog,
> the CPE-2 has a fixed drum speed of 75rpm, while the CPA-2 (twice
> the price) is variable from 25-90rpm.  My Ciba print book says that
> it's ok to use a motorized drum but make sure the speed doesnt
> exceed 35rpm.  How critical is this?  Does this mean that i really
> have to get the CPA if i want to do ciba prints in a reasonably
> temperature controlled motorized environment? 

If my memory serves me right, the CPE-2 has two speeds.


-- 
Robert Claeson            Internet: robert@sys.sweden.dg.com
Data General AB                     robert@sys.dg.se
Box 28                    Tel: +46 (0)8-92 55 00
S-164 93 KISTA, Sweden    Fax: +46 (0)8-751 36 22
From: carruth@mksol.dseg.ti.com (matthew carruth)
Newsgroups: rec.photo
Subject: Wanted: Minox cameras
Date: 13 Aug 92 20:41:28 GMT
Organization: internet

I am interested in purchasing a Minox LX, and one of the newer Minox 35mm
cameras(ASA up to 1600).  New or used will be considered.

-- 
-------------------------------------------------------------------------------
My views are my own and do not reflect those of my employeers....
From: mlindholm@cc.helsinki.fi
Newsgroups: rec.photo
Subject: The quality of Nikon "E" lenses?
Date: 21 Aug 92 11:33:00 GMT
Organization: University of Helsinki


    Are the Nikon E-series lenses inferior in some way to the standard
    Nikon manual focus lenses (e.g. the AI-series)?

    Mikko.Lindholm@cc.helsinki.fi 
Newsgroups: rec.photo
From: ka1gt@cbnewsm.cb.att.com (robert.m.atkins)
Subject: Re: Sigma cheats?
Organization: AT&T
Distribution: na
Date: Wed, 12 Aug 1992 16:44:45 GMT

In article <1992Aug12.144133.10885@neptune.inf.ethz.ch>, margulis@inf.ethz.ch (Eugene Margulis) writes:
> I recently tried a Sigma UC 4-5.6, 70-210mm AF lens on my Nikon F601
> (6006).  Now, I know that it is almost a sacrilege to use a non-nikon
> lens on a Nikon, but my main criteria is compacteness and the Sigma
> lens is about 180g lighter and much smaller than the equivalent Nikon.
> 
> After playing with the lens over the week-end I realised that the light
> measurements with the lens were consistenly different from the
> measurments with another lens (35-70mm, AF Nikon). It seemed that with
> the Sigma I needed wider apperture and slower shutter speed than with
> the 35-70mm, Nikon, when both were set to 70mm. I went back to the
> store and tried measuring exposure of the same object (light ets, was
> the same) with several lenses, all set to 70mm FC. Here are the results
> (approximate):
> 
> 	my Nikon 35-70		F 4.5	1/30
> 	my Sigma 70-210		F 4	1/4
> 	   Nikon 70-210		F 4     1/30
>    another Sigma 70-210         F 4     1/4 
> 
> I was under impression that given a certain apperure (say F4.5), all
> lenses should let the same amount of light pass through. It certainly
> seems that Sigma lenses pass less light then they are supposed to,
> almost 3 f-stops less. Does that mean that Sigma cheats and simply
> mislabels the lenses? That is 4-5.6 lens is really something like
> an 8-11 lens? Or there is some other explanation to that?
> 
> I ended up returning the lens to the store. Does anyone know of any 
> good compact 70-210 AF lens for a Nikon?
> 

If you check the "Popular Photography" tests you will find that many lenses
are a LITTLE slower than marked, but not by much. 1/2 stop slow is about the
limit (the Sigma 400/5.6 tested as a 6.2), NEVER 3 stops. Something else is
going on here. Not being a Nikon user I am at a loss - maybe the Nikon lens
has electronic contacts that the Sigma doesn't and the camera uses these to
somehow decide what metering pattern (spot, average, center, matrix) to use?
Just a wild guess....
===============================================================
Bob Atkins  AT&T Bell Labs  email (direct)  att!clockwise!rma
===============================================================

Newsgroups: rec.photo
From: lkoh@oak.math.ucla.edu (Liang Koh)
Subject: slide projector for sale
Organization: UCLA Mathematics Department
Distribution: usa
Date: Mon, 17 Aug 92 16:01:45 GMT


I have a slide projector which I hardly used and bought less than 5  months.
I like to sell it because I am moving to another country. It is a medalist AF
(4601) with lens 102mm, f2.8. I would like to sell it at $290 or best offer.
I have to move by end of august, so contact me as soon as possible if you
are interested. I will pay for the postage.


Newsgroups: rec.photo
From: lswab@x400gate.bnr.ca (Lyndon Swab)
Subject: Re: Enlarger vs. Slide Projector
Organization: Bell-Northern Research Ltd.,
	<1992Aug13.151921.5909@m.cs.uiuc.edu>
	<BsyAz0.2BD@watdragon.uwaterloo.ca>
	<1992Aug14.070848.18495@odin.corp.sgi.com>
Date: 14 Aug 92 14:15:00 GMT

>>>>> On Fri, 14 Aug 1992 07:08:48 GMT, donl@glass.esd.sgi.com (donl mathis) said:
  donl> Nntp-Posting-Host: glass.esd.sgi.com


  donl> In article <BsyAz0.2BD@watdragon.uwaterloo.ca>,
  donl> drraymon@watdragon.uwaterloo.ca (Darrell Raymond) writes:


  donl> |> I see your point - it's that the prints people get with 
  donl> |> wall enlargements are just about as lousy as the results they
  donl> |> get with their slide projectors. This is probably true.)

  donl> Could you have found a way to say this without being so nasty?  This
  donl> is rec.photo, not alt.bad.attitude.

Besides, St. Ansel made some pretty impressive wall enlargements.
--
Lyndon Swab     lswab@bnr.ca, (613) 763-7165, ESN 393-7165
Newsgroups: rec.photo
From: bragg@pecan.cns.udel.edu (Aquatic Joe)
Subject: Re: Rates for freelance photographer
Organization: The Green Circle Of Vengence
Distribution: USA
Date: Sat, 22 Aug 1992 07:50:26 GMT



	I'd never do weddings.  What I was thinking about doing, is antiques and
classic cars (shows), and that sort of thing.  I do well with inatimate objects,
especially sheetmetal.
	My question is: has anyonhad experience with this type of subjects?
I'm an art history major and minoring in photo.  I think bridging the two 
together this way is a great excerise, even if it isn't very profitable!
	Thanks in advance for your help and responses!

-- 
Adam Bragg                  |Tick: Hand Grenade Man? What are your super-powers?
bragg@freezer.cns.udel.edu  | HGM: Super powers? Bah!  Who needs 'em? I've got a
darkwing@ravel.udel.edu     |      HAND GRENADE!
                          SPOON!
Newsgroups: rec.photo
From: hasker@m.cs.uiuc.edu (Rob Hasker)
Subject: Re: Enlarger vs. Slide Projector
Organization: University of Illinois, Dept. of Comp. Sci., Urbana, IL
Date: Thu, 13 Aug 1992 15:19:21 GMT

drraymon@watdragon.uwaterloo.ca (Darrell Raymond) writes:

>In article <1992Aug12.184136.5162@midway.uchicago.edu>, hasn@midway.uchicago.edu (Sheheryar Hasnain) writes:
>> This is probably sound silly, but what does an enlarger do that a slide 
>> projector can't.  Basically, what difference does it make whether one uses 
>> a slide projector versus an enlarger.  They both project images don't they?
>> Sheheryar
>
>  It does sound silly.

I don't see this as a silly question at all.  Especially given the large
number of people who flip their enlarger on the side an project onto a 
wall so that they can get very large enlargements.  All of your differences
boil down to the fact that slide projectors shave corners to get the
maximum light output possible for short durations.  So the question is,
why can't we make slide projectors with the precision of enlargers?  
(With the answer being, of course, that the lenses would be ridiculously
large and expensive.)

Rob
From: gsnow@clark.edu (Gary Snow)
Newsgroups: rec.photo
Subject: Re: media permanence (was Re: photo-developing, specifically nudes)
Date: 21 Aug 92 18:29:26 GMT
Article-I.D.: clark.1992Aug21.182926.24048
Organization: Clark College, Vancouver, Wa.  USA

In article <239@metran.UUCP> jay@metran.UUCP (Jay Ts) writes:
>
>So, the media on which digital information is encoded *does* degrade.
>A while back I was reading in rec.audio that if you play an audio CD
>for about 24 hours, it will lose data to the point of the loss becoming
>clearly audible.  I think it had something to do with the centripetal
>force of spinning on the aluminum.  I don't really remember.

That is so much crap, they don't spin fast enough for that to happen.
I can play an original never been play CD and a one I have been playing
continuously for days (I often just let my 5 disk changer play for days
at a time as background music) through my spectrum analyzer and SEE no
degradation in its performance, and if I can't see no difference on the
analyzer, you can sure bet you won't be able to hear the differnce.

Gary

-- 
-----
Gary Snow
uunet!clark!gsnow  or  gsnow@clark.edu
Newsgroups: rec.photo
From: accwai@math.uwaterloo.ca (Andy Wai)
Subject: Re: B+W Fiber vs. RC paper
Organization: Math Faculty Computing Facility, University of Waterloo
Date: Wed, 12 Aug 1992 17:25:49 GMT

In article <1992Aug12.150547.17284@col.hp.com> sparks@col.hp.com (John Sparks) writes:
>[...]
>Well I have plenty of 10 year old RC prints that disprove the 10 year
>life expectancy.  I also have some from high school that are almost 20
>years old that show no degradation as far as I can see.

Actually, without something to compare against, you can't easily see minute
degradation.  Try this experiment sometime:  Take a work print, cover half
of it with black paper, and put the whole thing outside somewhere so it's
exposed to direct sunlight but not rain and moisture.  Keep it out there
for 6 months to a year.  When you finally take it back inside, examine the
exposed half carefully and most likely you won't detect any trace of fading
(Otherwise, you blew the processing or the paper is total trash).  However,
uncover the other half and you'll see that fading has indeed occurred.

Now the RC vs. FB question.  I have seen samples of RC and FB paper (Multi-
grade III and Multigrade FB if memory serves) from the above experiment.
MGFB outside for a year shows about the same degree of fading as MGIII out-
side for 6 months.  MGIII outside for a year shows noticeably more fading
than the other two.  So in terms of fading at least, the difference is still
there.  On the other hand, anything that can stay out there for a year and
still show a convincing image can't be all that bad.

Andy Wai
Newsgroups: rec.photo
Subject: Re: Changing DX code
From: geoffrey@cosc.canterbury.ac.nz (Geoff Thomas)
Date: 14 Aug 92 12:40:26 +1200
Distribution: world
Organization: Computer Science,University of Canterbury,New Zealand

Having seen the original article posted on how to change the DX coding,
I was going to have a go at it with some aluminium tape and stuff,
but then I thought "What a hassle, having to make up the tape each time!"

After a bit of thinking, I came up with a solution:

- go to the local photo lab, and get hold of some of the old used canisters
	in a range of speeds;
- stick some tape over the number of exposures DX codes to get a non-standard
	number (agfa films have this, with their 27 exps);
- carefully (i.e. NOT with a can opener!) open both ends of the canisters and
	remove the spools;
- find a nice friendly person with a pair of tin snips, and cut off the felt
	bits inside the canister, and also trim about 1-2mm off each end;

Hey, Presto!

A nice little slip-on DX fooler sleeve, that fits around another canister,
and can be swapped from one film to the next, without having to make up a
new sticker.

The bit about the "fits around another canister" is a bit tricky, as for my
oldish Pentax P30 there is about a 1.5 mm gap available, so the sleeve needs
to fit VERY snuggly, with no bits poking out at odd angles, etc. That's why
you've got to exercise a bit of caution getting the end caps off.

Anyways, hope people find this useful!

Geoff Thomas
From: zrepachol@cc.curtin.edu.au (Paul Repacholi)
Newsgroups: rec.photo
Subject: Re: IR Photography
Date: 21 Aug 92 15:54:19 GMT
Organization: Curtin University of Technology

In article <237@metran.UUCP>, jay@metran.UUCP (Jay Ts) writes:
> sgccpgs@citec.oz.au (Paul Salanitri) writes:
...
> 
> : BTWBTW
> : Infrared Film:  I'm abour to purchase some, I want to know 
> :   A)  What are some interesting tricks
> 
> One of them is to use Kodak Ektachrome Infrared Film.  Having done this
> myself, I can heartily recommend that you run out and buy 10-20 rolls
> at $20 each, use a Tiffen #15 (orange) filter, and bracket a stop in
> each direction by half stops around EI 160 only in conditions of bright
> sunlight with the sun at your back.  Then find a place that does E-4
> processing and get your film developed.  After completely wasting a few
> rolls, you will start to catch on.  You may wind up with one or two
> interesting slides if you are lucky.  Disclaimer: :-) for this paragraph!
> 
> Actually, I suspect that there has been little artistic color infrared
> photography in your country, so it might be worthwhile.
> 
> As for interesting tricks, the first is to get a decently exposed photograph
> of *anything*.  There are other, more IR-experienced people on the net to
> help you with that.
> 

The fun part is getting a wrattern 12 filter... I used the original Aerochrome
IR years ago when I was in school. Ive shot more of that stuff than any other
slide film!! Still hae two rolls in the freezer, one part exposed. As I remember
shoot in full sunlight as per the datasheet and it will be reasonable. Note your
meter setting, but don't use them until you have done a few rolls and work out
'fiddle factors' for your meter.

Any one got an old E-3 kit? := ))

~Paul
From: dpc@eng.cam.ac.uk (D.P. Cryer)
Newsgroups: rec.photo
Subject: Re: media permanence (was Re: photo-developing, specifically nudes)
Date: 20 Aug 92 11:07:38 GMT
Organization: cam.eng

In <1992Aug19.213620.25447@clark.edu> gsnow@clark.edu (Gary Snow) writes:
>In article <22234@venera.isi.edu> finn@dalek.isi.edu (Greg Finn) writes:
>>In article <1992Aug19.155539.17331@clark.edu> gsnow@clark.edu (Gary Snow) writes:
Gary> Hold it, are you trying to tell me that a B&W PRINT can out live
Gary> its digital counter-part?  I don't think so.

Greg>	What digital storage technique has a successful 50+ year
Greg> history and is still being used on a significant scale?  I know of
Greg> none.  If you do, speak up.  CD storage, to pick the currently hot
Greg> technology, may or may not still be around in 50 years.

Gary> Not valid, since we haven't had digital media all that long, but as you
Gary> say below, I am sort of predicting the future. If there is any digital
Gary> media that is 50 years old (were we using any during World War 2?), it
Gary> was when the technology was in its most infant stage.  Surely we have
Gary> had changes since then, but as the technology matures more and more
Gary> of the digital media will become standardized, and will have at least
Gary> a useful lifespan.

Although not directy relevant I was quite pleasently surprised when I was
watching "Tomorrows World", (a UK programme that gives various tantalising
glimpses at new ideas/technology), when they were talking about storage of
old BBC TV programmes. Because of this same type of problem with equipment
becoming redundant at an incredibly fast rate, with not enough of the older
programmes being transferred onto the latest storage technology, they
have now opted for a system of copying everything onto BLACK and WHITE
film. They seperate out the colour and intensity information storing them
side by side on the film (they didn't go into any detail of how this was
done or what method of coding the colours was used).

The reasoning behind this was stated as both to enable the pictures
always to be read (as the technology needed should always be around now)
and to guarantee archival permanance.

One up for BLACK and WHITE film I thought.

David Cryer                                     dpc@eng.cam.ac.uk
Newsgroups: rec.photo
From: raju@cs.UAlberta.CA (Raju Patil)
Subject: Mail Order Experience from CANADA ??
Organization: University of Alberta, Edmonton, Canada
Date: Fri, 21 Aug 1992 06:31:21 GMT

Hi,
  If anybody in CANADA has purchased any camera equipment from a
  mail-order company in USA, please inform me (via e-mail)
  about the extra charge (if any) you had to pay in Canada to get the
  package, i.e. did you have to pay GST, and any extra customs duty??
Thanks
Raju
raju@cs.ualberta.ca
From: victor@ccwf.cc.utexas.edu (V Menayang)
Newsgroups: rec.photo
Subject: Re: Slide projector for sale
Date: 14 Aug 92 06:20:29 GMT
Distribution: na
Organization: The University of Texas at Austin

In article <12929@inews.intel.com> pkundu@mipos2.intel.com () writes:
>The following is for sale:
>- Leica model P150 slide projector
>- 85 mm lens
>- auto-focus and remote focus control
>- German standard slide magazines (can take max 66 slides)
>- facility for single slide viewing or automatic operation
>- slide preview
>- remote forward/reverse slide movement.
>- slide magazines available (2x50, 1x36) with purchase
>- Absolutely new (bought in March '92)
>
>Asking $300. Just received a used silde projector for free, hence ....


You can get the same thing from me for $285 ABSOLUTELY new
(I'll buy it from B&H AFTER you order one from me).
Of course, you can order one direct from B&H (800-221-5662)
and save some money (they have it  for 249.95 + S&H).

-victor




>
>
>send email or call:
>pkundu@mipos2.intel.com
>(408) 765 4939 (work)
>(408) 739 9107 (home)


-- 

-------------------------------------------------------------
Victor Menayang                     victor@ccwf.cc.utexas.edu 
=============================================================