I think the original poster is using film SLR, not D-SLR. If film SLR, then there will be no C-Mos problem, but if D-SLR, then still better not to touch the mirror as to avoid more dust or scratches. D-SLR are expensive...better send to OEM to do servicing...Originally posted by kamwai
i dun think dust on the mirror will affect the picture rite?
but i wonder if the dust on mirror will go to the CMOS later due the the mirror's movement....