I recall that it is known that the 645DF has a small light leak when using it with Little Stopper and Big Stopper filters. This shows as a red smear at one corner of the image. Someone from Phase One told me that it is best to wrap the body in a dark cloth or something similar to prevent this. And indeed this works though it is a bit clumsy.
My question is whether there are any parts of the body which could be covered by gaffer tape to stop the problem. I seem to recall that the IR illuminator is one suspect.
It only happens with long exposures but can anyone suggest other simple ways to solve this ?
Many thanks.