Kowa's TSN-CM2 T-Mount Camera Adapter Ring is dedicated for use with Nikon F Mount cameras. This T-mount is intended for digiscoping applications with compatible Kowa spotting scopes that are fitted with TSN-PZ, TSN-PA6, and TSN-PA7, and TSN-PA8 digiscoping adapters.
It works as it should
Initially the mount fit very snugly and provided a solid connection with the camera (used to attach an older mirror lens to Nikon D300). On day 2, the mount began to shift slightly in the camera mount whenever I focused. It is a slight twist, but a degree of loosening just the same. It is not the screw mount releasing, as I can remove the lens from the T-mount and the mount still shifts.