ryan constantine wrote:

>> The exposure time does not only affect the brightness of the picture,
>> but also on the contrast. Contrast and brightness are not
>> independent, they are controlled by exposure time and development
>> time (with a given film/developer combination).
>
>don't aperture settings play in to this as well?

Aperture setting is part of the exposure, size of the "hole" and the speed 
of the shutter give the amount of light that the film sees.

Ingo

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