12" Kodak Commercial Ektar

Hi,

I bought a 12" Kodak Commercial Ektar, I am in doubt about the

retaining ring. It has a flange on both sides one is about 1/16" tall

and the other about 1/4". Which one goes towards the lens and does it

go through the lens board or it sits at the face of the lens board.

Thanks,

Jacques

Jacques, I'm guessing the holes for the wood screws aren't counter sunk? Also, is your Commercial Ektar mounted in a Universal or Acme shutter? Try taping the flange to the lensboard. If you screw the flange firmly onto the rear of the lens with the 1/16" side toward the shutter, do all the levers work smoothly or do they bind up on the lensboard? If everything works well, countersink the screw holes on the flange accordingly and you've got it. If not, try it with the 1/4" side toward the lens. FWIW Commercial Ektars are superb lenses: enjoy!------Cheers!

Hi Jacques, the 1/4 rim goes towards the lens, at least on mine. Best, David

Jacques, The 1/4 inch side goes through the lensboard and the lens is screwed up to the 1/16 inch flange. Do not screw the flange to the board first, only after you orient the assembly. The screw holes are to fasten the whole assembly to the lensboard after you screw the lens into the flange to get the proper orentation of the shutter the way you like it.

Paul