[pure-silver] Re: T-Max 400 2
- From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Tue, 01 Apr 2008 17:09:37 -0700
At 04:08 PM 4/1/2008, you wrote:
I shouldn't have said I "knew" he tested it with D76, I should have
said I was told by someone who said they knew. But this is the
internet and who knows what is true. I have on pretty good authority
that Kodak considers D76 the standard to judge tests by.
On Apr 1, 2008, at 15:59, Chauncey Walden wrote:
I don't know what John Sexton used in testing the 400 but for his own
100 he uses TMax RS developer.
My own experience with at least the older version of T-Max 400
is that T-Max RS developer produces somewhat coarser grain than D-76
1:1. I have not used Xtol because I had two failures with it before
ever having a chance to actually develop any film.
According to Kodak's sensitometric curves T-Max RS will also
produce somewhat higher maximum densities but the maximum from D-76
is already beyond the normal printable range. T-Max RS should also
deliver somewhat greater speed.
Shooting at about 80% of box speed should push the exposure up
the curve enough to insure good shadow detail, I think at EI-250 one
may get somewhat dense negatives. According to the Kodak literature a
correctly developed T-max 400 negative should look a bit thin.
Remember, exposure determines overall density, development
determines contrast.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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