Foma 100 Help Please

[Michael Kadillak]

A while back in my interest to consider alternatives to TMY in 8x10, I acquired a 50 sheet box of Foma 100 and have had a heck of a time getting it to cooperate. I tray develop the film and contact print 8x10 on Azo/Lodima.

So far I have tried it in Pyrocat HD, Rodinal 1:50 and ABC pyro and I consistently find my negatives lack the density that I find appealing as they are thin. I am rating the film at 80 and just want to give this emulsion a fair shot. Any ideas?

[jumanji]

Try Xtol 1+1, constant agitation, EI 50 (I put the shadow on Zone IV), 8.5 - 9 min at 20 degrees C.

[lbenac]

I use it with DD23 ISO 25 (bellow extension factor in) 6 minutes in A and 3-4 minutes in B in a Jobo 3010 on Uniroller.

[analoguey]

I use foma 100 in 4x5 with xtol 1:3 at ~25c.
Pretty decent results with that so far.
Usually use the tube within the tray instead if direct tray development.

[Regular Rod]

I use it in 8x10 for reasons of cost. It is good film and I now get negatives exactly as required using either 510-PYRO or OBSIDIAN AQUA.

HOWEVER(!), it seems to need rating at something slower than the makers' box speed. I use the Zone System to calculate the exposures with a Pentax Spotmeter V set at 80 ASA instead of 100...


With 510-PYRO




With OBSIDIAN AQUA

RR

[mdarnton]

What's the problem now; what do you want to change?

[Regular Rod]

What's the problem now; what do you want to change?

He was wanting to obtain greater density in his negatives...

RR

[Michael Kadillak]

He was wanting to obtain greater density in his negatives...

RR

Bingo. I can get bullet proof negatives that I like from T Max 400, Efke 25, FP4+, Delta 100 and even HP5 under the right conditions. Foma 100 (or as I understand Arista EDU 100) seems rather elusive in giving me the robust results I want. The costs are a strong incentive and I inherently like to have a plan B and C with my photography.

[peter schrager]

michael..use the T200 instead..no problem with density
best,peter

[sanking]

Bingo. I can get bullet proof negatives that I like from T Max 400, Efke 25, FP4+, Delta 100 and even HP5 under the right conditions. Foma 100 (or as I understand Arista EDU 100) seems rather elusive in giving me the robust results I want. The costs are a strong incentive and I inherently like to have a plan B and C with my photography.

Michael,

But is your low density caused by lack of exposure or underdevelopment? Any of the developers you mentioned should be capable of giving sufficient contrast for AZO development with appropriate exposure and development. Especially ABC Pyro since it has a lot of kick. I suspect that for some reasons your negatives did not receive adequate exposure in your initial tests.

Sandy