Should I use ISO 125 or ISO 400 black-and-white film for studio photography?
Asked 11/15/2010
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I’m planning to shoot black-and-white film in a studio. Which film speed is the better choice: ISO 125 or ISO 400? I’m interested in how film speed affects grain, lighting flexibility, and whether one is generally more suitable for studio portraits or controlled studio setups.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
15y ago
2 Answers
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That would really depend on what kind of effect you are going for, and which format you shoot. Some can't stand the more apparent grain that comes with higher speed film, but I think it adds character. Then there is development and printing, etc. I personally find B&W ISO 400 film to suit my taste though, mostly T-Max or Tri-X with a side of Ilford HP5 Plus, and I use lower ISO film like Ektar and Sensia for colour.
Either way, when it comes to film, it is largely a matter of taste. I have seen Tri-X pushed to 1600 for studio portraits to good effect, and some have done great work with Ilford FP4 (ISO 125), or even Agfapan 25.
If you have difficulty deciding, I suggest trying a roll each, then see which you prefer. Film is pretty cheap these days :)
Originally by user1868. Source · Licensed CC BY-SA 4.0
user1868
15y ago
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In a studio, ISO 125 is often the safer starting point because studio lighting is controlled and you can usually add or adjust light as needed. Slower film generally gives finer grain and more flexibility for enlarging or cropping.
ISO 400 can still work very well, especially if you like a grainier look or want that classic character many people associate with films like Tri-X or HP5. But with powerful strobes in a small studio, ISO 400 may be too fast and force you into very small apertures.
So the trade-off is:
- ISO 125: finer grain, easier to manage under strong studio lights
- ISO 400: more visible grain, more “character,” but can be too fast in some studio setups
There isn’t one universally “better” choice—it depends on the look you want and how powerful your lights are. If you’re unsure, try a roll of each and compare the results.
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