I am in the process of building a Wide Angle 4x5 Point and Shoot. I have the aluminum body, back, tripod socket, accessory shoe, level, lens, shutter and aluminum lens board all in place and need to resolve one last detail before putting the final touches---->Focusing The lens I am using is a Nikkor 65mm f/4 in Copal #1 shutter mounted in a recessed lensboard which is reversed. When everything is placed into position I have 40mm between the film plane and the nodal point of the lens thus I have a 25mm gap at infinity. How to fill the gap? Well, I could make the camera fixed focus and rely on hyperfocal distance for focus but I am minded to use a bit more finesse than that. Especially since I am guessing (but will check it out on my Wisner tonight) that the actual movement of the lens from say 5 feet to infinity is probably only 5-6mm. So I am looking for a helical focusing mechanism (approx 1" thick). There is a chinese one on eBay that is stated to be available for a 65mm in copal #1. I have emailed the seller to inquire about dimensions and availability but the language barrier has left me unsure... I will continue to persue this possibility. Meanwhile I would appreciate advice on any other options or sources for suitable helical focusers. Movements are not really an issue with this camera, and I'll probably end up shooting 6x12 format on 120 in the long run. Thanks in advance to all.