| SPECIFICATIONS | |
|---|---|
| OPTICAL |
|
| Primary | 17½" f/4.5 mirror, 3" thick |
| Secondary | 3.1" minor axis diagonal (big!) |
| Focuser | 1¼" |
| Finder | none |
| SIZE |
|
| Tube diameter | 20" (50cm) |
| Tube length | 74" (188cm) |
| Rocker box | 27½" (70cm) square |
| WEIGHT |
|
| Tube Assembly | 140 lbs (63kg) |
| Rocker box | 90 lbs (41kg) |
| Mirror | 29 lbs (13kg) |