EF mount compatibility

 

Rollei Zeiss 35mm f/2.8 Distagon
1978 Manufacturer’s list price: $785
List price in today’s dollars: $2,855

 

Retro­fitting the Carl Zeiss Jena Tes­sar 80mm f/2.8

Some lenses need to be phys­i­cally altered to get the clear­ance needed for the 5D Mk II. The Exakta bay­o­net on my Carl Zeiss Jena 80mm f/2.8 Tes­sar extended a frac­tion of a mil­lime­ter too far into the camera.

Mod­i­fied 1967 Carl Zeiss Jena 80mm f/2.8 Tessar

Mod­i­fied 1967 Carl Zeiss Jena 80mm f/2.8 Tessar

I started with a fine tooth file and fin­ished with a flat sharp­en­ing stone. In less than 5 min­utes, I removed .6mm of metal from the back of the bay­o­net. The lens still fits tight on my Exakta film cam­era and it now has enough clear­ance for my 5D Mk II.

Mod­i­fied Carl Zeiss Jena 80mm f/2.8 Tessar

Mod­i­fied Carl Zeiss Jena 80mm f/2.8 Tessar