Kowa TSN-AR42GT 42mm Standard T2 Fit Adapter Ring with Protection Glass T-mount This is also the extension

This is also the extension bar for the CEM40/60/70 GEM45 mounts

This dovetail bar kit allows you to replace the wider CGE dovetail bar found on most Celestron 9

AUX Operation temperature -10°C ~ +40°C Pier/Tripod Optional pier Warranty Two year limited OTA size and length dependent

The ASI482MC is one of the latest OSC planetary cameras released by ZWO in 2021

You don't necessarily need a Glasspathcorrector for Schmidt-Cassegrains with f/10

Kowa TSN-AR42GT 42mm Standard T2 Fit Adapter Ring with Protection Glass T-mount This is also the extensionAdapter Ring to Combine the TSN DA10 or TSN DA20 Digiscoping Adapters With T2 Rings Integrated Protective Glass Prevents the Camera Sensor From Becoming Dirty