The only foam I remove and replace is the the mirror bumper and the the strip at the hinge end of the film door. Replacing foam around the prism and mirror box is asking for trouble, especially if it's gicky. Light leaks, at least in my experience with Nikons, tend to happen at the door hinge. The channels along the length of the film door are really there more moisture/dust protection, not light blockage.
Originally Posted by BradleyK
Foam kits are overkill. I've used the thin adhesive-backed sheet foam Newt suggests, along with thin felt, in a number of cameras and medium format backs with no issues. Lots of online "how-to" resources, too.
Last edited by CGW; 08-27-2011 at 10:36 AM. Click to view previous post history.