Konica Hexanon GR II 260mm F9 Lens Mounting

I finally got around to mounting the Hexanon 260mm

Even though my drill press work hold down method failed, I am pleased with the results.

Thanks to the HF Transfer Punch Set, I was even able to achieve near perfectly aligned screw holes.

Most of the difficulty came from the fact that I was unable to remove the lens flange, so all of the markings, alignment and assembly had to be done with the entire lens assembly.  The deburring and finishing process too, was tedious, especially considering the fact that I have no particular insight into machine work.

Overall, I am pleased with the results of the 75mm hole saw, as well as the project in its entirety.

The next phase will be to mount the lens to a Sinar lens board.