Questar 7

Nice!

I read that NASA used modified 12 inchers with a camera to track Space Shuttle launches and reenters.

I also read that ETX 90 is almost equal in optical terms and C4 equal at least, but the quality of the Questar is outstanding and it really shows even in the photographs.

Questar is a great instrument. But many come to realize that there is a limit to what the eye can see and if one makes an optical system accurate to an extremely high degree it looks good on paper but can not be distinguished by the eye.

I havn't had the good fortune to look through or visually inspect a 12-inch model yet. Not to many were made.

-Fred