[brian nordstrom (As avatar)]

great work Doppler .
Brian.

Originally Posted by doppler

Here's a good write up for the specs on a skywatcher cf ota. Seems that the skywatcher has pyrex glass mirrors and baffles in the tube.

https://www.firstlightoptics.com/ref...newtonian.html

and one for the GSO

http://www.teleskop-express.de/shop/...n-Germany.html

Best to call the guys at Andrews and ask them about the differences they sell both scopes.