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- Path: sparky!uunet!caen!uwm.edu!csd4.csd.uwm.edu!dannmann
- From: dannmann@csd4.csd.uwm.edu (Daniel Harley Wagner)
- Newsgroups: rec.photo
- Subject: Setting up a darkroom...
- Date: 16 Nov 1992 17:40:46 GMT
- Organization: Computing Services Division, University of Wisconsin - Milwaukee
- Lines: 71
- Distribution: world
- Message-ID: <1e8meuINNlt8@uwm.edu>
- NNTP-Posting-Host: 129.89.7.4
- Summary: (help!)
- Keywords: fogging, developers, darkroom, old enlargers
- Originator: dannmann@csd4.csd.uwm.edu
-
- Howdy, networld. I just finished making purchases to round out a darkroom
- at my home. Now I have some questions about how to go about starting
- working in it.
-
- I purchased a used Opemus IIa enlarger, made in Czechoslovakia, probably
- before I was born. (judging from the yellowing of the warranty and the
- style of the typography..) This enlarger seems to have been set up to
- enlarge 2.25 x 2.25 negatives, which might have suited when it was new, but
- causes me to have a minor headache. While the negative carrier has glass
- plates in it to hold a 35mm negative with, the lens isn't exactly suited to
- larger enlargements. (With the head at the top of the pole, I can MAYBE make
- a little smaller than an 8x10 enlargement, with no room for cropping.) The
- lens is currently a 75mm lens.
- Unfortunately, I do not have the dimensions of the bayonet at hand right
- now, but does anyone know if I can buy a smaller lens for this enlarger?
- (has anyone HEARD of it?) Also, somewhere along the line before I purchased
- it, someone made a different lensboard for it, but no lens. Could I just
- purchase a 50-55mm lens that fits the new mount and attach it to the
- enlarger? Or would I have to worry about the different focal lengths? (if
- so, would it just be a simple fix, or would I have to whip out the tired old
- physics text?) Oh, and if this is any help: The lenses they mention in the
- manual are made by/called "Belar".
-
- On to the chemistry side of my questions.
- I purchased a gallon bottle of Ilford Universal Paper Developer and a
- half-gallon of Ilford Universal Fixer. When I purchased the enlarger, the
- seller tossed in some old chemistry. While I don't plan on using the old
- dektol/d-76, etc, there was a bottle of kodak indicator stop bath. Since
- this is mostly acetic acid and an acidity indicator of some sort, I don't
- figure it would go bad. My question is: Will this work with the Ilford
- chemicals I am using, or will I need to shell out a few bucks for the
- genuine Ilford chemie? (or can I be cheap and use a water stop?)
-
- And now: Fogging!
- While I'm going to make every effort to make my darkroom light-tight, how
- can I be sure that any existing light won't fog my paper when I first pull
- it out of the dark-bag to check fogging from extraneous sources (like the
- LED on the computer next to the enlarging table, or perhaps the flourescent
- bulb's afterglow in my ceiling fixture, or even having the safelight
- entirely too close to my table.). I'm using Ilford Multigrade III
- Pearl-coated paper (semi-matte), and a kodak OC safelight. Does anyone know
- of a good (reasonably so, at least) test for fogging? Thanks!
-
- List of equipment:
- Opemus IIa condenser enlarger
- Ilford Universal Paper Developer
- Kodak Indicator Stop Bath
- Ilford Universal Fixer
- 2 1/2 gallon Datainers (for Stop and Fixer)
- 1 1 gallon Datainer (for paper developer)
- Kodak Torchiere' style safelight with an OC colored fixture, 15 watt bulb.
- (some style of timer.. it works, it's reasonably accurate.)
- 3 8x10 trays
- 1 5 gallon pickle bucket to hold the fixed prints in until I can get them
- to a water supply (at end of session, presumably)
-
- Assorted other stuff that might cause problems:
- A computer with green LED on top of it to indicate power. (low wattage, I'm
- sure..)
- 2 flourescent "bulb-style" fixtures in the ceiling fan, which tend to have
- an afterglow.
-
-
- Thanks-
- Dann
-
- P.S. Should I leave the ground glass in the enlarger, or should I take it
- out? What's the advantage either way? Thanks.
- --
- Daniel Wagner | Standard disclaimer <here>
- dannmann@csd4.csd.uwm.edu
-