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- Path: sparky!uunet!charon.amdahl.com!amdahl!JUTS!RUTS.ccc.amdahl.com!bjs
- From: bjs@RUTS.ccc.amdahl.com (Barry Sherman)
- Newsgroups: rec.photo
- Subject: Re: Jobo CPE2 CPP2
- Message-ID: <45uZ02o42cF001@JUTS.ccc.amdahl.com>
- Date: 23 Nov 92 20:59:43 GMT
- References: <1992Nov22.015719.16337@ultb.isc.rit.edu>
- Sender: netnews@ccc.amdahl.com
- Reply-To: bjs@RUTS.ccc.amdahl.com (Barry Sherman)
- Followup-To: rec.photo
- Organization: Amdahl Corporation, Sunnyvale CA
- Lines: 74
-
- Steve Kosoff writes:
-
- >
- >Jobo CPE2 CPP2
- >
- >What are the differences in the above? What advantages does one give
- >over the other.
-
- CPP2 over CPE2:
-
- * Greater temperature stability. I believe that it's +/- .1 C for the
- CPP vx. +/- .2 C for the CPE. Not sure just how significant. I have
- hazy memories that some processes (E6) want a smaller tolerance than
- the .2 C but I'm not sure. Since I got my CPP I've stopped worrying
- about temperature variations.
-
- * The CPP has a built-in digital thermometer. I think this is a nice
- convenience, although it won't get you more accurate temperatures
- than the CPE (in terms of the "base" setting, not the variation). If the
- temperature knobs of the CPE work with detents, as do those on the CPP, then
- repeatability shouldn't be a problem. If they're "inifintely adjustable",
- with no detents at the numbered markings then you'll have to fiddle with
- the knobs while watching a thermometer and allowing time for the temperature
- to stabilize each time that you tweak it if you're to get the temperature
- set identically each time.
-
- * Maximum print size on the CPP is 20x24 while I believe that it's 11x14 on
- the CPE. Just as a suggestion: try not to limit your sizes unnecessarily.
- M
- any people seem to find that whether they're dealing with print size or
- film size, they wind up wanting to use something larger than what they
- thought they wanted when they bought their equipment.
-
- I can't count the number of people I've talked to who'd like to use large
- format (4x5 and up) but are limited by their medium format enlargers.
- Many people think that 11x14 is a really huge print. And continue to
- think so for a year or so ... Personally, I bought a 4x5 enlarger because
- I was sure that I'd want to move to 4x5 (from 35mm) someday. Now that I'mm
- using 4x5 almost exclusively I'm realizing that I'd *really* like to be
- using 8x10 format.
-
- And when I built my darkroom I designed the furniture so that my "standard"
- print size would be 11x14 and I could, with significant difficulty, do
- 16x20 and 20x24. And I'm now realizing that I'd really prefer to
- standardize on 16x20 but it's too awkward to do so enjoyably.
-
- Just a little observation here. :-)
-
- * The CPP has a solenoid-controlled cold water inlet. This permits it to chill
- solutions as well as warm them. I don't use this as I don't have plumbing
- in my darkroom but it sounds like a nice idea.
-
- How come only the CPP and the CPE are being considered? The CPA permits
- the same print size as the CPP, while lacking the digital thermometer and
- cold-water inlet. I think, but am not *sure* that the CPA also has slightly
- greater temperature tolerance. But I'd think it to be a better bet than
- the CPE.
-
- Barry
- --
-
-
- |----------------------------------------------------------------------------|
- | Barry Sherman, Amdahl Corp. | PROGRAM: n. A magic spell cast over a com- |
- | bjs@ruts.ccc.amdahl.com | puter allowing it to turn one's input into |
- | | error messages. tr.v. To engage in a pas- |
- | | time similar to banging one's head against |
- | | a wall, but with fewer opportunities for |
- | | reward. |
- |----------------------------------------------------------------------------|
- | Amdahl, being a corporation, is a legal fiction. Therefore it is incapable|
- | of holding, let alone expressing, opinions. Unfortunately, this has been |
- | said of me as well. |
- |----------------------------------------------------------------------------|
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