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Standardizing Stand-Development for PanF+

baachitraka

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For example,

Film: ILFord PanF+, shot at box speed.

Developer: Rodinal, lets say 5ml for 500ml of water.

If the difference between shadow and the highlight say 6EV what development times you choose to have decent contrast. Then how much you will adjust for 5EV and 7EV.
 

el wacho

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panf in stand development - panf is main variable. it is that contrasty compared to other films. even with stand dev - i've done it in rodinal and pyrocat m and you never get box speed for starters. rodinal at 1:100 will keep developing highlights till they block up with panf. i would start at rodinal 1:200 and test from there if you want the developer at the highlights to exhaust. you also run the risk of streaking in skies which can be remedied by intermitent agitation. i've currently pinned it in pyrocat m at 2ml:2ml:500ml ( using sod hydroxide as B bath ) with full inversions for the first minute then 5 every 5 min for 35min at ei 25. you get a long scale neg that handles many lighting situations ( i shoot roll film ) i shoot for diffusion.
 

fourpi

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I believe you have some missunderstanding about stand development in Rodinal. It is NOT the dilution rate, but the ratio between the volume of developer to film area. If you used 5ml Rodinal to 500 ml water you have pushed the film by one stop. The box speed ratio is 3.5ml Rodinal in whatever volume of water you use to cover the film, 500ml, 1000ml,.... . Two rolls require 7ml Rodinal.
 

Steve Sherman

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Simply untrue, in fact Semi Stand and reduced agitation development regimes can effect a greater impression of contrast expansion in low contrast scenes as well as controlling extreme amounts of contrast like no other technique I have ever encountered. For years prior to Semi Stand I regularly made photographs in extreme amounts of contrast so I have considerable experience in all means to control and effect contrast.

A bit out of character but I doubt many have ever been able to control and maximize tonal control with the success I have enjoyed with the Semi-Stand technique of film development.

I've said it before, make no mistake, SS and Reduced Agitation Dev. will maximize film speed, maximize mid tone contrast all while compressing highlight contrast. As with any unusual technique, considerable trial and error and real world experience are the keys to repeatability.

See this link for an informed discussion by some notable photogs about the process and it's possibilities. (there was a url link here which no longer exists)

Cheers
 

Rich Ullsmith

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That is interesting. Recently I've gone to semi-stand development with PMK and Tx400. Contrasty light, stand 5 of the ten minutes; flat light, stand 2 of the 10 minutes. So far results have been mixed, but indeed it does make a difference.
 
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baachitraka

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Yes, I was. Now, it is clear.

 

Steve Sherman

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