M43 & NEX adapter for Taylor Hobson Hypertal lens

cults3d

Two mounts are designed for a TTH 32mm Hypertal lens, in a 2" diameter projection mount that measures 52.3mm across. The back of this mount features a fine helicoid thread. I initially planned to use thin wires pushed through the print as a receiving thread, but once printed, I found out this was not necessary - the lens engaged with the rough inside of the PLA/FDM print. After some time in use, it has become a bit loose, but still screws in and out for focusing (a layer of masking tape in front of the screw thread also helps). Meanwhile, the lens head sits deep within the projection mount because it only has a 32mm focal length, resulting in vignetting on the corners of APS-C and Micro Four Thirds cameras. There is no vignetting on the Blackmagic Pocket Cinema Camera 4K. These mounts may work for longer focal lengths with no vignetting (although I don't have any suitable lenses to test). Pictures show what the lens mount looks like if you have similar projection lenses.