Originally Posted by paul ron
You are referring to the two leaf-shutter lenses, being the 90mm and 165mm (both f4). These are handy for raising the 67's pitiful x-sync from 1/30 to 1/60, 1/125, 1/250 or 1/500, by direct connection of flash to the lens (in leaf shutter mode).
There is still a fundamental requirement for a shutter in the camera body even with leaf shutter lenses (which can be used as normal lenses at any other time). In leaf shutter mode the camera-side shutter speed is set to 1/8 second while the leaf shutter on the lens is set to your desired sync speed (as mentioned earlier). You think that's all a bit confusing? Try doing it in a hurry! And if you do get it wrong, and do not follow procedure, it can damage the leaf shutter, the mirror, the camera shutter or all three!
Last edited by Poisson Du Jour; 02-18-2013 at 11:51 PM. Click to view previous post history.
Reason: simplified sentence, correction of figures.