hi all, ive been converting working cameras into pinhole cameras. ive been using a brownie for 120 and a fedka (russian copy of leica) for 35mm. heres the problem, the chromes ive got from my fed have a 'hot spot' in the exact center, an overexposed point on every frame, aside from that the results have been good. my brownie experiments dont have this at all, and both cameras use a drilled brass plate for the apperature and all glass lenses have been removed. of course the pinhole for the brownie is further away from the film, about 5", than the pinhole on the 35mm, about 1 3/4" to 2 1/2" respectively by collapsing and extending the lens. anyone else ever get this or know why? thank you.
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