"Gregory L. Hansen" wrote: > > If I'm shooting in low light conditions and I have a longer lens at f/4 > and a shorter lens at f/2.8, is there ever an advantage to using the > shorter lens for the wider aperture, but a slower film speed, and then > cropping and zooming on a portion of the picture?
No. The area of the film is more significant than the speed of the film. The grain of an iso 200 film doesn't differ significantly from that of an iso 400 film (the difference between f 2.8 and f4), but losing part of your negative is a significant drawback. Paul
