Hi Everyone,
After installing a CNC milled spider into my Quattro 800 I had a go at M16. I think I'm getting there with the collimation now but still need to deal with possible mirror movement.
Only did 25 X180 sec each of SHO with Antlia 3.5nm filters with ASI 183 MM camera.
Chris.
https://www.astrobin.com/pvkpa8/B/