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Phil,
First off, I understand that the term "push processing" does not main one is pushing up the film speed, but pushing up the film contrast.
Here is the shooting situation:
I am shooting an event indoors using existing light. Lets say a wedding reception. Note that the priority here is to capture the moment, having a negative with full tonal range can be sacrificed for an image that is printable.
Because of the rapid pace at which an image can appear, and then disappear, I am relying on the camera’s meter for all my readings, not a hand held meter. I am shooting with a fast (f/1.4~f/2) medium telephoto lens (85mm ~ 135mm). With the lens wide open, the correct exposure is with a shutter speed of 1/30 with 400-speed film. I lack a hand steady enough to get a sharp image at 1/30 with a medium telephoto lens; I need to be shooting at 1/125.
What I have always done in the past is set the film speed on the camera two stops faster then the film really is, and over developed to get a printable negative. What I need to figure out is now long to develop the film to get the most printable image.
You asked what film I am using. The short answer is: All of them! Personally I shoot Kodak films, Tri-X, TMax 400 and TMax 3200. If there is another film that will give me better results when pushed to 1600, I am very open to switching. Long term, though, I am working on figuring out development times for all the films because I am working on putting together a B&W lab and expect customers to shoot everything.
Sam
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