The simplest solution is to replace the 3x4 Graflex back with a 4x5 Graflex back not a 4x5 Graflok
I have just fitted a 4x5 Graflex back to a camera that had previously for reasons that escape my understanding a previous owner had fitted a 3x4 Graflok.
It was just stuck on to the rotating plate. It fell off . Actually very little difference between the registration distances on the 3x4 Graflex and 3x4 Graflok. So sticking it on was not such a bad idea if better glue had been used. The backs are both about 3mm thick as is a 4x5 Graflock. A 4x5 Graflex is about 6mm thick hence the need for a conversion plate when when converting from 4x5 Graflex (approx 6mm thick) to 4x5 Graflok (3mm thick).That is the plate Bert Saunders supplies. You need to shim the back as it is impossible to to lower the reflex ground glass though you can of course raise it. If doing the conversion the other way.
If you convert a 3x4 Graflex backed Super D You just screw or use machine screws as I did the 4x5 Graflex back to the rotating plate.
If you rotate the back through 45 degrees you will find 4 very convenient screw holes in the metal rotating plate you can use to assist you..
The ground glass on the back is then 3mm or so further back than it was previously. You need to shim the reflex ground glass further up to compensate for this difference
If you remove the hood and the springs securing the ground glass you can remove the ground glass. You will find that supporting the front edge of the ground glass are two little brackets. Unscrew these. To the rear the ground glass is supported by a wooden shelf.
Cut a little strip of wood 3mm thick and stick using whatever you like the 3mm strip of wood to the shelf. Stick a 3mm thick sliver of wood to each of the brackets I used super glue. Reassemble.
The Graflex back only overhangs the body of the camera by less than 1/2 inch on each side it really is a rather compact back unlike the 4x5 Graflock which is huge and needs to be hacked about to make it fit. The 4x5 Graflex back is actually smaller than a 3x4 Graflok.
When Polaroid was available to use with 4x5 Graflok backs their was an advantage to some people of fitting them. Now Polaroid has gone the advantage has flipped the other way with the ability to use bag mags etc with a Graflex that you do not have with a Graflok.
It took a long while for the penny to drop for me that this was the way to go. I like the format I also have another 3x4 Graflex backed Super D, a 3x4 Graflex backed Speed Graphic and I have converted a quarter plate Sanderson Field camera to 3x4 Graflex back too mainly because I could not find a roll film holder to fit it. I like being able to use the roll film holders and bag mags between my cameras but Efke has now gone leaving only Wephoto or the Ilford special order run and quarter plate FP4 + is twice the price of 4x5 here in UK.
Last edited by yronnen; 02-12-2013 at 08:42 PM. Click to view previous post history.