I'm curious what lenses you're using that require larger lensboards. I use a Norma and while I admit that there are some lenses that just won't go on the camera, I've been able to have some pretty large lenses mounted by having an adapter piece made which is attached to the front of the lensboard and allows a larger mounting surface. This then let's me still use the Sinar shutter which I think is one of the best features of the system.
At some point, isn't the hole in the shutter a bottleneck?...
To get around the size limit of the DB shutters, I've thought about adapting a Speed Graphic rear shutter to my Sinar, in front of the film plane. That would be pretty slick if it worked. Basically, I envisioned mounting the shell of a Speed Graphic on top of the rear standard, in place of the rear carrier frame, and somehow hooking the SINAR bellows up in place of the Graflex's bellows. Not only would this give you a Graflok and rear shutter, but it would also maintain all of the rear movements.
It's certainly possible. Why not fit it to the back of a Sinar front standard instead? You would also need to modify the back of the shutter to be able to hold the front of the bellows.
With a focal plane shutter, your exposure would be a little different too, but not enough to matter unless it was really slow.
What's the maximum opening size of the FP shutter?
To get around the size limit of the DB shutters, I've thought about adapting a Speed Graphic rear shutter to my Sinar, in front of the film plane. That would be pretty slick if it worked. Basically, I envisioned mounting the shell of a Speed Graphic on top of the rear standard, in place of the rear carrier frame, and somehow hooking the SINAR bellows up in place of the Graflex's bellows. Not only would this give you a Graflok and rear shutter, but it would also maintain all of the rear movements.
I wish I needed the Norma. I'd love to have one. But I have a C. I really wish that your 8x10 conversion kit was a 5x7 conversion kit. I'd be all over it!
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