How to develop exposed film for shadows ?

[Rosssiiii]

Hi

I’m using this film (AGFAPHOTO APX 400) and I’ll be developing it with ARS Imago FD at 1+39.

What development time should I use?

My friends usually shoot by averaging the exposure using the light meter reading, and I’ve done the same with my previous rolls.

This time I wanted to try exposing for the shadows and adjusting the development time to preserve the highlights. Since I’ve read that FD is quite a strong developer, and because I’m exposing for the shadows and don’t want to overdevelop the highlights, what development time should I use?

Maybe it’s not a good idea to develop my negative together with the others, who usually do 9 minutes.

I think I should probably do around 4:30m or 5 minutes at most or 6.30 ?

Looking forward to your advices

 

[retina_restoration]

The MDC says 6.5 minutes at 1:39

 

[cliveh]

In terms of picture aesthetics, I would suggest that lack of shadow detail is preferable to lack of highlight detail.

 

[runswithsizzers]

How, exactly, did you expose for the shadows?
That is, what did you do differently this time, compared to the way you usually meter b&w negative film?

 

[Paul Howell]

The standard line is to expose for the shadows and develop for the highlight. Using the Zone System as a ruler using a spot meter meter the shadows for zone 2 or 3, then meter for a highlight for Zone VII, bright area with texture, then develop for Zone VII, The problem unless you have tested your film and developer combo in advance you don't know what time you need for Zone VII. So as the roll has been already shot, use box speed and recommend development time and hope for the best.

 

[koraks]

or 6.30 ?

I'd start there, see how it goes.

 

[Ardpatrick]

I’m assuming you’re starting out with film development? Excuse me if I’m wrong.

For me - understanding the simple principle that you expose for the shadows and develop for the highlights is the key starting point. Many many film shooters don’t get that, mostly because they don’t develop their own films.

If you have access to a spot meter, or a 35mm slr with a spot meter mode in the camera, you can start to break down the scene you’re shooting into different tonal values. You can firstly identify the shadow values that are important - measure them, and give 2 stops less exposure than what the shadows read in the meter. Provided your rating the film at box speed or slightly less, your exposure will be okay.

For development it’s a good idea to have the spot meter to also measure the brightness range between that shadow detail and the brightest significant highlight texture / detail you want to preserve. Make notes as you shoot. A brightness range of about 5 stops should be easy to manage. Wider range is possible but that’s where it starts to get more precise.

I think it makes sense to shoot a ‘test roll’ - shoot a typical scene(s) using the above described approach, and then in the dark room just cut the film into ‘clips’ that you then process individually at different development times. See which time gives the best highlights result (shadows have been determined in exposure). Look back at your notes on exposure. All of that gives you a solid working knowledge of your materials (film). It won’t make you Ansel Adams but you should be able to make better photos.

Phone lightmeter apps often have a spot meter function. So that’s also a way to go. But be aware that these apps need to be ‘calibrated’ against a known good meter. I’ve found them consistent in reading, but sometimes quite far off in terms of the exposure settings they convert their measurements into.