I recently got a nice Canon 7 and I am loving it. But there is one thing about the shutter when I fire it. From speeds of 1/1000 to 1/60 they sound fine, but when I use the lower speeds 1/30-1 sec, its like there is an additional sound like a spring bouncing. Is this normal? I have developed 2 rolls of test films that I have used with it and they were all perfect, no pinholes etc., but I am worried about this weird sound. Any thoughts?
On speeds slower than 1/60 the shutter, which is 2 pieces opens, waits a time, whatever you set, then the part that closes snaps closed. That timing device is mechanical, it's a set of escapement gears and you're probably hearing the whine of gears which is delaying the second part of the shutter. Congrats on the 7. Pretty cameras. I've got one with an .95 50mm on it, and it never gets used. My bad.
He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949