Consider the following setup for a 35mm roll film test for tungsten speed and development time, versus contacting: Camera with 85mm lens aimed at a brightly lit white card target. The focal plane is about 12" from the target. The lens is focused at infinity. The card is illuminated by flood lights such that metering the card at EI 100 gives a reading of f32@1/15s, so that exposures can be made from zone I (f32@1/250s) to zone XV (f4@1s). The white card is cut to size so that it fills the frame but does not go beyond. It is surrounded by black cardboard. Further, I made a lens insert (fits into the filter threads) made of black cardboard which masks everything outside the frame (picture a black lens cap with a rectangle cut in it). So, is this high or low flare? Presumably the masking work reduces camera flare substantially, but I'm still unclear on whether or not the absolute intensity of the target makes a difference. For example, suppose you can expose a frame for zone I in two ways - 1) high intensity as above, f32@1/250s or 2) a target 10 stops less brightly lit, f16@1s. Assuming this is a uniform target, is there a difference in flare between those two exposures? Camera flare? Lens flare? And what about the same questions but assuming instead of a uniform target, each exposure is of say a reflectance grey scale tablet, or a backlit transmission wedge (ie rather than a uniform tone in each frame there are multiple adjacent tones)? Does flare play a different role in that case?