Thanks for sharing your experience! Great to hear that the 8-15mm works flawlessly with the Monster adapter on your A1. It’s really helpful to find someone with firsthand experience using the same setup.
I’ll be trying this out soon, but I’ll use the 20mm extension instead of the 30mm for two reasons—first, I don’t have the 30mm, only the 20mm and 35mm, and second, based on another reply in this thread, matching the 20mm with the 35.5mm adapter brings it closer to Nauticam’s recommended setup for the Nikon version of the fisheye. Hopefully, the Zoom will still work, which could open up more creative choices when using crop mode!
Interesting to hear about your experience with the Nikon 60mm. I just started using it with the Monster adapter in the same port I use for the Sony 90mm. What port do you use? So far, I like the results (see attached, and haven’t had any issues—fingers crossed it stays that way!