Starting with a mirror someone was selling as scrap (advertised as $10 per pound pyrex), I managed with a little masking to build a fairly decent (and very cheap) dobsonian. Lots of little scratches / blotches on both the primary and secondary, but serviceable. In fact, I'm not sure I could tell the difference if both mirrors had been perfect.
First light was eyes wide open 8O
Clears,
Joe
First light was eyes wide open 8O
Clears,
Joe
Attached Image:
In lumine tuo videbimus lumen.
8O Home-made 10” Dob / Home-made 4” refractor
EPs: Konig 32mm (1.25") / Zhumell WF 30mm (2") / Nagler 13mm T1 / Orion Sirius Plossls 25 & 10mm / Zhumell Plossl 9 mm / Meade MA 9mm
