| Author | Message | ||
     John Cribbin Rating: N/A |
Hi folks, As a collector of former Soviet Union rangefinder cameras, I have undertaken a fair ammount of maintainance over the years. However there is one area where I have never been able to get my head around. Many models have a separate slow speed mechanism, normally 1/30 and slower. I have observed on many occasions, that while both curtains run fine at higher speeds, at lower speeds the second curtian is slow in closing. To my mind, both curtains are closed by releasing the energy stored in the springs. So delaying the release of the second curtain, should have no effect on the speed at which it travels once released. But as it obviously does, is there something I'm missing? Thanks. |