A source for reliable developer processing times and ratios?

[DannyTreacy]

Hi all,

I usually shoot C-41 and E-6 and process my film using a Jobo.

I have just exposed a few sheets of FP4 5x4, rated at 100, I haven't shot b&w for a very long time.

Before I go ahead and process the film I wondered if there was an index of user's information regarding the real world times and ratios for various developers?

I have some ID-11 and T Max developer and one called Ilfosol 3 or something (I inherited them a couple of years ago and they're all unopened.

I realised today that I probably should have over exposed a bit for the shadows so would it be appropriate in this case to pull the development time to reduce contrast?

Thanks in advance.
Danny.

[koraks]

The massive dev chart (Google it) and filmdev.org are what you're looking for. Welcome back to b&w!

[bob carnie]

I use FP4 on a Jobo - ID11 or D76 straight at 7 1/2 minutes.

[alberto_zh]

I use FP4 on a Jobo - ID11 or D76 straight at 7 1/2 minutes.

Cheers mate! Rotation setting? 1? Sorry for the question but I haven't tried mine yet


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[Pere Casals]

I always use the massive development chart that koraks mentions, for initial setting.

Anyway you also have this nice site:

http://filmdev.org/popular

http://filmdev.org/

You can see effects of film/developer combinations on images, anyway particular shot conditions and scanning introduce variables.

[bob carnie]

Cheers mate! Rotation setting? 1? Sorry for the question but I haven't tried mine yet


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45

[koraks]

You can see effects of film/developer combinations on images, anyway particular shot conditions and scanning introduce variables.

Yes, that's the major drawback. You never know how they post processed the results. It's a little deceptive for that reason, but it helps to get you in the ballpark. When using a new film or developer (new to me at least), I always look for recipes on both filmdev.org and the massive chart to select a starting point that makes sense to me. This has always given me a usable starting point and initial negatives that can be printed in some way.

[tgtaylor]

You can find a film processing chart on Ilford's website that list the time for various developers (including the ones you mentioned) and concentrations. You can also download similar chart for Xtol and probably TMax from the Kodak website which give the rotary times for FP4+. To match with Ilford times, simply see what Ilford recommends and compare that with the Kodak time for rotation.

Thomas

[Pere Casals]

Yes, that's the major drawback. You never know how they post processed the results. It's a little deceptive for that reason, but it helps to get you in the ballpark. When using a new film or developer (new to me at least), I always look for recipes on both filmdev.org and the massive chart to select a starting point that makes sense to me. This has always given me a usable starting point and initial negatives that can be printed in some way.

I always found filmdev.org more useful for MF and 135 than for LF, one can see grain nature of films used at different speeds and with different development. Not only the grain size but also grain structure, if grains are smaller or larger in dark or light greys and all that... but LF is very inmune to grain...


What's about toe/shoulder/tonality filmdev images have to be analyzed with a lot of care, still we can see some interesting information, like what happens with latitude when pushing...

It's what you say, an starting point...

[DannyTreacy]

Excellent responses thanks! This is a great forum!