Steve Goldstein
24-Jan-2018, 12:29
It was my understanding that these two shutters were effectively interchangeable, but it seems they aren't.
The cells from my barrel-mount 14" Repro-Claron are a perfect fit in the Compound III from my 300mm/500mm Schneider convertible. I tried them in two different Copal 3S shutters, and in each case they would screw in about two full turns, then bind. One of the 3S shutters is the older version with a non-linear stop progression, the other is the newer type with a constant spacing between stops.
I also tried moving the cells that live in the Copal 3S shutters. While those cells can be swapped between the two shutters with no difficulty, they won't screw in to the Compound more than a couple of turns before binding.
Sigh...
The cells from my barrel-mount 14" Repro-Claron are a perfect fit in the Compound III from my 300mm/500mm Schneider convertible. I tried them in two different Copal 3S shutters, and in each case they would screw in about two full turns, then bind. One of the 3S shutters is the older version with a non-linear stop progression, the other is the newer type with a constant spacing between stops.
I also tried moving the cells that live in the Copal 3S shutters. While those cells can be swapped between the two shutters with no difficulty, they won't screw in to the Compound more than a couple of turns before binding.
Sigh...