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What the Nerds Do / Re: Nikkor 10.5mm f/2.8 - 62mm filter threads modified
« Last post by Øivind Tøien on Today at 10:47:58 »Thanks, as I have access to a heavy duty drill press at work that had to do. The speed was quite slow so it took "a while", also as I first forgot that it had a gear in addition to the electric speed adjustment. As expected the male threads of the ring came off once enough material had been removed. Unfortunately my stepwise approach to remove material resulted that the fit became too loose at the part nearest the mount, but nothing that could not be compensated by a couple of thin layers of epoxy that was allowed to set before fitting.
The final result is a very secure press fit that aligns the back of the 6T Ring with the edge next to the focusing collar. A note is that while the retaining ring was used to allow correct seating, it takes up too much space to allow anything to be attached to the filter threads, and thus had to be removed once desired position was achieved. The font of the T6 Ring is now positioned so that at infinity setting there is no cutoff corners in DX mode, and the circle in FX mode has a minimal circular crop, which takes away a little of the blurriness at the edge. I need to repaint the threads and the front though as there are some reflections from exposed metal.
For completeness I first also include a few of images from the shaving process. Note the multiplayer tape guiding the cut. The perfect fit of the soda can (a taller slender version but same volume as standard cans) shown after completing the cut and removing tape from the shade to release it. I have not seen that mentioned anywhere else. Continued in next post...