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Off center lens board

Posted: 22 May 2013, 23:22
by Waltzing Paul
Hi, would someone please explain the use of an off center lens boards and when you would use one.
I will be ordering a couple shortly for a 90mm and 210mm lense.
As you probably guessed I'm new to LF so please excuse me if this seems a silly question.
Many thanks, Paul.

Re: Off center lens board

Posted: 23 May 2013, 11:26
by smbooth
Depends on the camera and the default position of the lens. Some front standard don't go low enough to allow a centered len to drop below the centre of the frame, a off set lens board allows the len it be positioned below the centre line giving you more options for rise and fall. If the lens won't go below the centre line, you don't get fall, rise only. But you centre to centre your lens each time you set the camera up. If your current len board is centred set your camera up and put the len board on and set the front standard to the lowest position, if the hole is below the centre then use centred lens boards. if the hole is centered on the ground glass then get off set lens boards (or go without fall on the camera)

Re: Off center lens board

Posted: 26 May 2013, 09:03
by Maris
I make and use extreme off-centre lens boards for wide angle lenses on my Tachihara 45GF field view camera. This camera has no provision for bag bellows so lens shifts are restricted when the standard bellows are tightly compressed behind a wide angle lens such as a Nikkor-SW 65mm f4. By making the lens board square it can be mounted 4 different ways yielding rise, fall, left shift, and right shift displacements. A centred configuration can't be done but no one uses that, do they? Any problems with framing are solved by cropping. 4x5 negatives are generous.

Re: Off center lens board

Posted: 27 May 2013, 23:42
by Waltzing Paul
Thanks for the replies guys. I had a feeling it was all about the movements.
Can't wait to try all this out.

Re: Off center lens board

Posted: 28 May 2013, 06:59
by Lachlan717

Have you had a look at

Another good source for LF information (as is APUG).

This site, however, has the best people!!