- Joined
- Dec 19, 2017
- Messages
- 3,381
As some here know about 3 years ago I picked up a Sinar Copal shutter at a camera fair for £20. I assume the seller thought it was broken as it would fire when a cable release was used. NAS saw it on a visit to my house, then went to his car returning with his special heavy duty, extra long throw, Sinar cable release and it worked fine.
I don't have a Sinar camera or any relevant lens boards, initially I thought of front mounting to a lens, not ideal. So how to attach to a 7"x7" wooden lens board? Then how to attach a lens in front? This need a bit of lateral thinking. . . . . . . . . . .
The answer has been to make an adapter to slip the shutter on a lens board, and lock it in place, I began by making the frame it sits in.
The shutter has 2 lips, the top one fits under a wooden bar at the top, the separate piece of wood slides in when the shutter is in place to lock it in position. It will be screwed to the lens board when completed, allowing easy removal of the shutter if needed.
I decided in the end to make the lens board an integral part of the adapter.
Actually the shutter is being used the wrong way around, normally the front fits the rear of a Sinar front standard, instead of the bellows, which are the attached to the rear of the shutter, but as the shutter speeds are marked on both sides of the adjuster, and I'm not using Sinar DB lenses, it is not an issue.
It is still a work in progress, mostly finishing the lens board and tidying up cosmetically, before refinishing, 7 painting.
Ian
I don't have a Sinar camera or any relevant lens boards, initially I thought of front mounting to a lens, not ideal. So how to attach to a 7"x7" wooden lens board? Then how to attach a lens in front? This need a bit of lateral thinking. . . . . . . . . . .
The answer has been to make an adapter to slip the shutter on a lens board, and lock it in place, I began by making the frame it sits in.
The shutter has 2 lips, the top one fits under a wooden bar at the top, the separate piece of wood slides in when the shutter is in place to lock it in position. It will be screwed to the lens board when completed, allowing easy removal of the shutter if needed.
I decided in the end to make the lens board an integral part of the adapter.
Actually the shutter is being used the wrong way around, normally the front fits the rear of a Sinar front standard, instead of the bellows, which are the attached to the rear of the shutter, but as the shutter speeds are marked on both sides of the adjuster, and I'm not using Sinar DB lenses, it is not an issue.
It is still a work in progress, mostly finishing the lens board and tidying up cosmetically, before refinishing, 7 painting.
Ian