Going back to my days in Photo Class, we were taught to do 10 complete
changes, then a short soak in freshly mixed photo flo.
The theory is that each time you fill and dump the water from the tank, 1/2
the remaining chemicals are taken away.
John Hermanson
___________________________________
Camtech, Olympus Service since 1977.
21 South Lane, Huntington NY 11743-4714
Phone/fax 631-424-2121 http://www.zuiko.com
Free Olympus Manuals: 1-800-221-3000
___________________________________
----- Original Message -----
From: "Reynolds Paul (NAP)" <PReynolds@xxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, January 16, 2001 3:33 AM
Subject: [OM] Film Development
| Garth wrote:
|
| If you want to regulate temperature in the film wash, you *don't* have to
| use continuously running water. Washes that are highly effective can be
| done with four or five changes of fresh water, agitated or inverted
| (preferably the latter) for one minute each, with a final rinse in
distilled
| or bottled water and some Photo-Flo (or other surface-tension-reducing
| agent). By the time you're on your fifth change, what's left of the
| chemicals should be close to archivally-small quantities.
|
|
| Sounds like a good idea. Up to know I have always left the film tank under
a
| running tap for about 20 minutes. Initially I felt a bit guilty about
| wastage of water, until the last few months in the UK, that is;-)
|
| Never had the reticulation problem that has been highlighted. At least I
now
| I'll know if I do.
|
| I started using a while ago, deonised water for the final wash, together
| with a wetting agent. The negs dry out a lot better than using tap water,
| which is very hard in our area and prone to leaving deposits. I am
indebted
| to Ray Moth, who I think suggested this idea in the first place on the
list
| some time ago. One thing though. Deonised water here in the UK seems to be
| in short supply, particularly the 5 litre containers. When I mentioned
this
| at Halford's, the guy reckoned it was something to do with demand
connected
| with larva lamps and tropical fish. Apparently the former, from the
| seventies, are back in fashion. Haven't tried bottled water (the other
| kind).
|
| Paul Reynolds
|
| **********************************************************************
| This email transmission is confidential and intended for the addressee
| only. It may contain privileged and confidential information. If you
| are not the person or organisation to whom it is addressed, you must
| not copy, distribute, or take any action in reliance upon it. If you
| have received this message in error, please notify us immediately by
| telephone or email Postmaster@xxxxxxxxxxxxxxxx and return it.
|
| Carillion PLC Registered in England No. 3782379
| Registered Office:
| Birch Street Wolverhampton WV1 4HY
| **********************************************************************
|
|
| < This message was delivered via the Olympus Mailing List >
| < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
| < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|