So how easy is it to replace the Hasselblad light traps on an A12 back?
It's a piece of cake. Unlock the screw and move carefully both parts from each other. Look now how the old lighttraps are fitted and replace with the new one. To hold the lighttrap on his place put the slide on top of it during replacing the frontplate and fixe the screws. Ready. About 10 minutes of work.