Another 18"er "on the block".
Hasn't been a posting for awhile. So thought to show there are some of us "still alive".
Picture of my current 18" diameter by 1 1/2" (edge thickness) plate glass project. Currently just finished the #400 SiC. Will finish the fine grind with #800 for approx 90 mins.
Focal length 72" (f4). Should make for a compact ladderless scope when done.
Eyepiece would be just a little easier to reach than that of my 33"f4.1, with focuser height at 12' when pointed at zenith.
Stephen.
|