As we know, there are no 'standard' dimensions for most ULF film holder/camera backs. Perhaps it is time that the major ULF manufacturers came up with some agreed standards?
Barry
Hi Barry: Cool name!
I just sent an email to Sandy King who is leading an effort to do just what you suggest in this post. I am currently using the standard published by Mr. King which I am calling the jan. 1. 2008 standard. My letter to Sandy was to verify that this is going to be the "written in stone" standard and also to verify that other film holder manufacturers are or are not going to comply with it. We are making progress toward standardization with the interests of the end user in mind. I am not sure about any of the other manufacturers yet, but I know Young Camera Company and S&S holders will be interchangable.
Hi Barry: Cool name!
I just sent an email to Sandy King who is leading an effort to do just what you suggest in this post. I am currently using the standard published by Mr. King which I am calling the jan. 1. 2008 standard. My letter to Sandy was to verify that this is going to be the "written in stone" standard and also to verify that other film holder manufacturers are or are not going to comply with it. We are making progress toward standardization with the interests of the end user in mind. I am not sure about any of the other manufacturers yet, but I know Young Camera Company and S&S holders will be interchangable.
Referring to my thread "ULF film holder standards" of 2-2-08 in FEEDBACK and DISCUSSION to which you contributed relevant dimensions along with Sandy's, I would like to emphasize one feature which was implied but not stressed- the film aperture position. The width of the end flap, rails, and distance from end flap to rib lock would determine this, but perhaps the aperture ought to be specified on its own.
This would not keep a film holder from fitting into a given back but I do see your point. Still, the difference between Canham and S&S holders is only 1/16 inch on the flap length. Do most photographers compose to the very edges of the aperture? I don't. The thing about the standard as I said in your other thread is to ensure that any holder can fit in any back. There is no way you are ever going to get everybody to agree on the size of the aperture in their focusing frames which would affect the aperture as much as the film holder. I think this is a non-issue. It is FAR less important than ensuring that the holder will fit in your camera. That is my humble opinion.
You have to remember that is new standard will not fit all cameras. The older banquet cameras require a narrower holder about 1/8 and the rib lock has to be in a different position. The longer flap can also be a problem. But these little problems can dealt with if you have an older camera.
They will. The first run of cameras would have to have to be modified but there is a good supply of new (old style) holders around. Cameras from here on out will be made to the new specs. The camera are being built to take S & S holders. Whats been happing and this works the best is to buy the camera and 3 film holders, the camera is then custom fitted to the holders you buy. Or if you have holders the camera and/or holders can be custom fitted to each other.
Setting a standard is a good start. I have seem holders from the same manufacture vary. Then there are the camera makers that make there own cameras and holders to their own standard.
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