Sinar lensboard symmetry question

[Michael Nagl]

Dear colleagues,

the Shen Hao TFC810-A looks like the camera that suits my needs - almost. A little extra shift and fall would not be bad. As it uses those big Sinar lensboards, I think I could get or make lensboards with the holes offset from the center (I did that when I was using the 150mm lens on a Wehman as it would give me some 3cm of extra rise without compressing that long bellows too much). But this is only an option if I can then mount that lensboard in all the four different ways, the lens offset to the left, right, up or down. Is this possible?

Thank you in advance
Michael

[Dave Dawson]

Michael, A Sinar lensboard is symmetrical.

Cheers Dave

[ic-racer]

Another interesting thing would be to make the "Technica Adapter" board with the opening all the way at the bottom. Then you could keep your lenses on un-modified Technica boards and just have a single offset adapter board that you could rotate around as needed.

Though, I have the FCL-810A and could not imagine needing more movement.

[Bob McCarthy]

Undrilled boards should be available. They are for most brands. Then you can do it your way.

bob

[Dominique Cesari]

Here is a photograph of a Horseman lensboard with a hole offset. It has been drilled in a blank lensboard with a pilot hole, so it couldn't be more shifted than 15 mm or so. I had it done exactly for the purpose you have in mind, get an extra shift with a short lens (155 mm) which compressed the bellows on a Tachihara 8x10. Be carefull not to over-offset the hole with big glass, as the cells may protude on the front part of the camera.

http://www.dmin-dmax.fr/images/chambre/planchette_decentree.jpg

[Michael Nagl]

Thank you all!
ic-racer, that´s a good idea with the offset adaptor, even more so as my lenses are on technika boards and I intend to keep my Linhof.

[Bob McCarthy]

Then you could keep your lenses on un-modified Technica boards and just have a single offset adapter board that you could rotate around as needed.

Though, I have the FCL-810A and could not imagine needing more movement.

Linhof boards are not symmetrical and can not be rotated. I suppose the sinar style board could.

bob