Using Higher ISO Film - Medium Format Photography Forum

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Q. Using Higher ISO Film

Asked by Rusty Tripod (K=0) on 1/28/2003

My Yashicaflex dial for ISO stops at 200. Is there any way I can use ISO400 film successfully? I don't think I can push film.

I shot a roll of TRI-X before recognizing this. Since I am new to the developing end of film, I did not try to pull the film.

Any recommendations?

Rusty

Chris Lauritzen (K=14949) - Comment Date 1/29/2003

Rusty,

Set you camera to iso 200 then whatever the meter saids move everything up one stop. If the meter gives a reading of 1/125 f5.6 then set the camera to 1/250 f5.6. Ten proccess the film at the 400 setting.

E A (K=727) - Comment Date 2/10/2003

For what it's worth, I love shooting Tri-X at 250 (some shoot it at 200) and pulling my processing 7-10% shorter than usual times. You'll get a much longer tonal scale that works very well for higher-contrast situations.
http://usefilm.com/showphoto.php?id=3896 is an example of this.

E A (K=727) - Comment Date 2/10/2003

Chris' suggestion is right on. For your roll of 400 shot at 200, you'll have to take a little chance - pulling film one stop for me is about a 10% reduction in developing time, whereas pushing film is generally more of a 40% increase. Every photographer will have different formulas for this, depending on your materials, methods, and preferences. Use this as an opportunity to experiment a little; the upside is Tri-X is so tolerant that you'll probably have a very pleasantly printable negative even from this first endeavor pulling film.

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