CopperB
M3 Noob
you shoot as though you have 1600 film in your camera, as you say, using the shutter speeds etc required by that film speed and then develop the film as though it was 1600 iso.
this is an example of the result with Ilford HP5+ which is rated at 400 pushed to 1600:
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this roll required very light adjustment just to pop the blacks slightly. the images were made in a very dark barn with ambient lighting
Thanks Nathan. Developing it as 1600 is something I hadn't realized. So, when I've had 400 developed that was shot as 200, I should have told the lab to process it as 200?