Pinhole on 6 x 4.5 GP3 Harvey 777
Another go with film for the pinhole. after investigation I found my calculations were correct as was the Hasselblad light meter. It was the film. i had allowed for reciprocity failure but not at the heroic level the GP3 displays. About the same as FP4, dramatic. I won't be using it on any night shoots even on the shortest day it could see the sun rise first.
This the new 0.2mm hole.
The edge marking on the GP3 is annoying it creeps onto the image area, top RHS.
Pinhole on 6 x 4.5 GP3 Harvey 777
Another go with film for the pinhole. after investigation I found my calculations were correct as was the Hasselblad light meter. It was the film. i had allowed for reciprocity failure but not at the heroic level the GP3 displays. About the same as FP4, dramatic. I won't be using it on any night shoots even on the shortest day it could see the sun rise first.
This the new 0.2mm hole.
The edge marking on the GP3 is annoying it creeps onto the image area, top RHS.