Welcome to the Astronomy Technologies (Astro-Tech) Yahoo users group. This group has been put together so that owners and prospective buyers would have a central place to go for info, news, helpful hints and tips as well as a cool place to hang out and "Talk Shop".
This is a friendly forum and spammers and flaming will not be tolerated. The posting of questions in regards to the scope or it's mechanicals is encouraged but badgering and or harrassing of vendors or members will result in an immediate banning of that member. I have done testing of several prototype AT scopes but I am in no way affiliated with any of the manufacturers listed or discussed on this board.
So, sit back, grab a cup of coffee or a cold beer and enjoy your stay.
George, I was actually measuring the opening in an extra extension tube I don't use and that's 3 1/8" ID. I hadn't thought about the baffle tube. My rig stays
Stu: Thanks for the information. Actually, the opening in my rear casting is 2 1/8" which the light cone has to get through. If you unscrew the 90mm diameter
George, there may be a little more activity on another AT group at: http://tech.groups.yahoo.com/group/astro-tech/ There you can see some of my pix as well as