Originally Posted by John Koehrer
All SLr's work the same general way. You press the button and there's a linkage that releases the mirror which then trips the shutter.
What you're describing is a slow lever,actuator or even mirror.
But there *are* big differences between cameras even when working perfectly...
M6, SL, SL2, R5, P6x7, SL3003, SL35-E, F, F2, FM, FE-2, Varex IIa