Remix of Nikon 1 telescope adapter

thingiverse

One thing I've been putting off for a while is modifying my local observatory's h-alpha solar telescope with a limited focal distance past the socket. An astronomy camera will work, but a Nikon 1 would provide a nice contained and mobile solution due to its cheap price and new mirrorless design that seems abandoned. I started printing out an original version but it jammed and I wanted it shorter, so I reduced the grip portion, unfortunately messing with it in the process. After printing that, I found the tapered portion was a problem: because of its cone-like shape, if secured, it would cause the adapter to be off-axis, which is a major issue for good imaging. So I made a straight one. I might make another version that accepts filters or is shorter and I think I'll create an OpenSCAD version to make those changes easier. It focuses nicely in an ETX-70's flip mirror on close terrestrial targets, but of course there are clouds tonight. After testing with a 130SLT OTA, it works pretty well although the ability to focus isn't as great as I'd like. The preview on my J3 doesn't have a zoom feature, leading to the somewhat cumbersome process of taking pictures, viewing results, adjusting and repeating, unlike what I can do on my D5300s. Note: I take no responsibility for any clouds that may come from printing accessories for telescopes; coincidences can be amusing.