Biggest problem I've seen with all manner of ground glass "lifter levers" is that they either don't lift the back far enough to slide in a film holder and that they require too much force such that you worry that you are knocking the camera out of 'whack'. Suggestions: The Zone VI is the Standard Design-- u-shaped lever, pulling it lifts the back away, but it also tends to de-tensions the spring clips that hold the back (and your film holder). Problem is partly the weak spring. I periodically unscrew the spring bars and bend them back. BUt a sloppy back wont focus on the correct plane and is a ligh leak hazard. My quick n dirty fix was to find some small plastic 'rod caps' that slip over the ends of the metal lever allowing it to more easily slide over the spring. Less jarring of the camera. rollers would be even better. As for the weak spring problem. It's Hook's Law. The farther out you pull any spring the more force is required. More force = more likely to deform the spring. ONE should be able to create a levered back mechanism that is strong enough not to get loose and sloppy bgut not too strong enough to jerk the camera out of alignment. ---William Nettles [EMAIL PROTECTED] Nettles Photo / Imaging Site http://www.wgn.net/~nettles > From: [EMAIL PROTECTED] > Reply-To: [EMAIL PROTECTED] > Date: Sat, 4 Aug 2001 12:07:05 -0600 > To: [EMAIL PROTECTED] > Subject: Cameramakers digest, Vol 1 #179 - 2 msgs > > Has anyone out there designed a homemade lever that lifts the ground > glass away from the camera so that film holders are easy to install. I > have been working on the idea for my new camera back that I am > building. I am starting to settle on a single lever on each side in the > middle of the ground glass. Just don't want to over complicate the darn > thing. > Phil _______________________________________________ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
