ID-11 Mixing

[dynachrome]

Two more things - both boxes have the Harmon name and both are marked Made In Germany.

 

[dynachrome]

Two 1 liter boxes of ID-11 arrived today. They both have the same code number of 15B011 and are both marked Made In Germany.

 

[dynachrome]

My last test was this morning. I ran a strip of fresh Tri-X through the old Microphen. The Microphen is fine. I rated the film at 400 and developed it for 11 minutes 1:1 at 68F.

 

[bernard_L]

It just seems as convenient and potentially less wasteful than using a whole 36 frame film of identical pics as a fallback test each time but OK everyone to his own test

Don_ih did not suggest "using a whole 36 frame film of identical pics as a fallback test each time".
What I do (and my understanding of what Don_ih recommends) is to plan forward and shoot one roll of identical as-metered exposures of a blank wall on an arbitrary film (FP4 in my case). Also develop one frame in known good developer; net density should be something like 0.65, but that is off-topic.

If and when in the future I have doubts about a developer (old, new-to-me, whatever) or a roll is especially important, I take out the cartridge from its black plastic (or metal) canister, in the dark (so as not to waste the ~8mm long piece sticking out, pull and cut a ~40mm length, return the cartridge to dark storage, and the film snippet goes into another black plastic canister, to be used as a dev tank (25cc). Half an hour (or less) later,

• visual comparison with the reference snippet is good enough for a go-nogo test
• if so inclined, measure B+F, density, net density, and compare with reference.

In summary: one 36-roll buys me 36 future tests.

 

[MattKing]

FWIW, it may be better to use as your fallback test a subject with several items in it: a textured surface (a towel?) and something with a range of tones (shadows, mid-tones and highlights) plus a blank mid-tone (a grey card).

 

[dynachrome]

My rest strips include shots with an automatic flash with bracketed exposures and some available light shots. At this point I have a very adequate supply of fresh developers but I still like to experiment with some of the older stuff.

 

[eli griggs]

It might not be overkill to do a strip of test frames with each, out of date bulk film as you start it out.