If you own a Sinar camera you can simply mount it in a collar to any Sinar board and use it with a behind-the-lens shutter (Sinar Auto aperture shutter)
You can mount this way any lens, including barrel lenses that would be otherwise impossible to use in a copal shutter.
Sinar Auto aperture shutter is large enough to mount any lens in front of the shutter or even behind for wide lenses - it's diameter is around 100mm.
It is very loud to operate but built like a tank and works flawlessly. I still use it sometimes.
You can mount this way any lens, including barrel lenses that would be otherwise impossible to use in a copal shutter.
Sinar Auto aperture shutter is large enough to mount any lens in front of the shutter or even behind for wide lenses - it's diameter is around 100mm.
It is very loud to operate but built like a tank and works flawlessly. I still use it sometimes.
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