p.1 #1 · Disassembly - MS Optics Apollon 36mm F1.3 Leica M mount lens
My personal MS Optics Apollon 36/1.3 lens alignment for the rangefinder was way off. Adjusting my other MS Optics lenses was simple, but this one gave me a lot of trouble. I reached out to @yukosteel for help because of his experience and patience in dealing with intricate lens mechanics.
He managed to take it apart and figured out a method to align the lens with the rangefinder. It wasn't an easy job due to MS Optics decision to secure RF couple ring on focusing core with strong glue. However, after a lot of experimenting, he succeeded.
For more details about the disassembly of the MS Optics 36/1.3 Apollon lens, you can check out this article:
p.1 #2 · Disassembly - MS Optics Apollon 36mm F1.3 Leica M mount lens
I recently got my Apollon camera back, and the rangefinder is spot on, 100% accurate. If necessary, you can easily make minor adjustments. It's wonderful to have the option to buy MS Optics lenses and fine-tune them perfectly with our rangefinders by simply turning a ring on the back of the lens. Initially, none of my MS Optics lenses were properly adjusted from the factory, but now they are all perfectly calibrated.
p.1 #3 · Disassembly - MS Optics Apollon 36mm F1.3 Leica M mount lens
Update: For anyone struggling with MS Optics lenses that aren't well calibrated with the rangefinder, here's how to calibrate them: Basically, the adjustment should match the direction of the focusing discrepancy.
For example:
• If, after focusing on your target using Live View, you need to rotate the focus ring counterclockwise (CCW) to achieve proper focus (indicating front-focusing), rotate the lens’s RF adjustment ring (outermost ring) on the back counterclockwise (CCW) as well to correct it.
• If you need to rotate the focus ring clockwise (CW) to achieve proper focus (indicating back-focusing), rotate the RF adjustment ring clockwise (CW) to correct it.
By the way, this is usually the outermost ring and requires a spanner wrench for adjustment. Once you get the hang of it, the process involves a bit of trial and error but can be completed in about 5 minutes.