Re: making enlarged negatives

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From: Christina Z. Anderson (zphoto@montana.net)
Date: 01/21/03-09:57:55 AM Z


I certainly would, Philippe, but am I correct in assuming that a box of that
size film (50x70cm, or 19.68 inches by 27.55 inches) would be around $900?
Or do I have my math wrong? How about smaller sizes?
Chris
----- Original Message -----
From: "Monnoyer Philippe" <monnoyer@imec.be>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Tuesday, January 21, 2003 8:43 AM
Subject: RE: making enlarged negatives

> Dear Christina and others,
>
> I am studying what direct duplicating films are still on the market and I
tests them for sensitometry. I keep those which could be OK (true halftone
range, high and tunable density range) for us in alt phot.
> I have now two candidates. I will publish results soon by a way or
another. I might consider having a batch made for very large format and sell
it. Up to know a first estimate of the future cost is 50 USD/EUR per sq
meter, 50 sheets pack, 50x70 cm sheets, shipping not included.
> Would people be interested in such a film (thick polyester base) ? Any
input is welcome.
>
> Cheers,
>
> Philippe
>
>
> |-----Original Message-----
> |From: Christina Z. Anderson [mailto:zphoto@montana.net]
> |Sent: Tuesday, January 21, 2003 16:31
> |To: Alt Photo List
> |Subject: making enlarged negatives
> |
> |
> |Hi List!
> | Can anyone give me a ballpark time of exposures to test
> |strip at, for a
> |normal density 35mm negative onto FP4 (125) 4x5 film mostly
> |full frame under
> |a condenser enlarger with an 80mm lens, lens set at around
> |5.6? I've got
> |some past mathematical formula where you multiply the f stop and
> |magnification etc etc but would much prefer someone's
> |experience of what
> |they start test exposing their film at. Is it seconds, or tenths of
> |seconds, for instance? Since this is an interpositive that
> |will then be
> |reexposed onto 8x10 Bergger ortho film, I want it to be a bit
> |overexposed
> |and underdeveloped...I always used to use Kodak SO132 film,
> |and now that is
> |discontinued and I am not aware of any other direct dupe
> |film--if someone
> |knows of one, let me know, too.
> |Chris
> |
> |
> |
>


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