[rollei_list] Re: OT: development
- From: James Davis <jamesd@xxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Fri, 20 May 2005 19:24:53 +0100
Richard Knoppow wrote:
> The practical answer is to treat the film with a sulfite
> wash aid, like Kodak Hypo Clearing Agent, before washing.
> The blue stain is probably residual sensitizing dye as is
> the violet stain in T-Max films. While the presense of this
> slight stain is attributed to incomplete fixing I think its
> mostly due to the dye being bound to the gelatin by its pH
> after the use of an acid fixer. It may also be bound by the
> alum hardener if you are using a hardening fixing bath. The
> use of the wash aid does several things, all of which tend
> to release bound hypo, reaction products of fixing, and the
> dye. T-Max films come out of the wash aid completely clear,
> I suspect the Delta film will also.
Thank you for yours and everyony else's advise. I skipped on not buying
any wash aid but I think after hearing this it's best that I use some.
I'll pick some up tomorrow and see how I do.
> You can do a better job of processing than the pro lab.
The pro lab is 40 minutes drive from where I live. It had a turn around
time of a week but without a price that reflected this. That meant I had
to take two long lunch breaks and wait a week whereas I can develop the
film myself within a normal lunch break.
> I would start with
> a conventional developer and follow the manufacturer's
> instructions for it and the film. Believe it or not Kodak,
> Ilford, Agfa, Fuji, do know what they are doing and want you
> to get the best results possible from their products.
I'm following Ilford's instructions as best as I can with a little
adjustment to better suit the conditions I'm working in (no dedicated
space for a dark room). I've pretty much got all my kit in a box and do
the chemistry in the bathroom.
> The frame spacing from Rollei cameras has little to do
> with operator skill, its a matter of the condition of the
> camera.
My frames are sometimes a little too far left or right and too close to
the edge. I was thinking that was due to a little tension on the roll to
one side due to me not starting it off dead centered.
James
--
http://jamesd.ukgeeks.co.uk/
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