Quote Originally Posted by Photo Engineer View Post
....Then there is the factor that is contributed by edge effects which brings up the topic of macro vs micro contrast. If you design the film to have high micro-contrast, then the contrast of fine objects is higher. This film functions well for 35mm. Actually, most films have graded high micro-contrast, medium contrast wider images and lowest contrast for macro images. Thus the transition from 35mm to 4x5 for example, with one film, may give a different visual result in the same developer, but then again, under good conditions, the images should be identical for detail.

This should show up rather strongly in a sine wave MTF test, but I have never seen it.