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1920s film speeds

 
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David_Edge



Joined: 25 Jan 2016
Posts: 2
Location: Derby, UK

PostPosted: Mon Jan 25, 2016 4:38 pm    Post subject: 1920s film speeds Reply with quote

I'm planning to take some portraits using a Graflex quarter-plate SLR and to make the experience as authentic as possible planned to use Pan F guessing that ISO25 was probably state of the art back then.

A bit of digging suggests that the slowest commonly-available sheet film would be FP4 and someone has suggested Foma 320 for an old-fashioned look.

Can anyone here say what ISOs (or ASAs I suppose) were available in the early 1920s and also any comments on a suitably aesthetic film (and I suppose developer) combination?

Ideally things available in Europe.

David
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David Edge
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William Hallett



Joined: 07 Jan 2012
Posts: 55

PostPosted: Tue Jan 26, 2016 2:10 pm    Post subject: Reply with quote

If you want to roughly replicate the colour balance of the era, you might try Ilford's Ortho film. It's rated at 80 ASA in daylight, 40 ASA under artificial light. It has exceedingly fine grain, and I've been very pleased with its image quality. It's only available in 4x5.
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David_Edge



Joined: 25 Jan 2016
Posts: 2
Location: Derby, UK

PostPosted: Tue Jan 26, 2016 2:27 pm    Post subject: Reply with quote

Thanks William - a useful point - that the colour balance of the film will have more influence on the result than the grain or perhaps contrast - after all my hero will presumably have used an appropriate contrast grade of paper.

I'd best do some digital simulations to see what I'm going to end up with - basically I think drop the red channel out.

I was expecting to have to cut film down to quarter plate.

Regards

David
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