Nikon Prime Focus telescope adapter - M60x0.75 threads

thingiverse

I'm using an adapter to achieve prime focus photography with my Orion XT8 telescope. One side features the Nikon F mount, while the other has M60x0.75 threads that fit perfectly onto my telescope's focuser. I have a Nikon F mount T adapter and 1.25" T ring that can be attached to the 1.25" eyepiece mount on my telescope focuser. However, using this setup makes it impossible for me to focus properly since there isn't enough focuser travel towards the telescope body. To get proper focus, I use a 2X Barlow lens between the camera and the telescope, but it adds extra glass into the optics train and increases magnification. This results in objects like the moon appearing too large for a single exposure on my APS-C sensor. My solution is to use this low-profile adapter that mounts the camera as close as possible to the focuser.