I cracked the mirror shutter on my SR3 and have been having a hell of a time trying to find a new one. I did locate an SR2 mirror shutter so I thought I might be able to take off the mirror and replace the cracked SR3 mirror. I'm not talking about the whole mechanism, just the mirror.
Does anyone know if those two mirrors are compatible? They appear to be the same, but I've had difficulty finding exact specs on either.