Please don't get me wrong, I'm not saying they can't be done easily, just that it took me a week to figure out the variables to do a 6" F/25 concave mirror!
Never said that, I never used the planetary rig. I made flats in batches of 50-100 at a time, with generally 6 spindles going. I averaged one in 15 minutes to
Maybe your mean doing flats on a large planetary polishing machine then yes you're right, a flat is fairly straight forward. Doing a flat or one of these long
The dates for NEAF 2010 have been set for Apr 17th-18th. Typically there is a seperate imaging forum the day prior to the Saturday and Sunday exhibits. Save