|
Back in 80'ies I built my 10", f/5.6 Newtonian OTA (mirror is optically OK, by Coulter Optical, still in useable condition), the tube is ø30cm fiberglass, from Parks... very strong stuff.
I wanted to recoate it (because of couple of scratches, result of accident when secondary fell and landed on it), but gave up on idea...
My intention now is to use it for AP as is, as lonng as possible (with reducer, it could be an excellent f/4 system), permanently mounted in my future observatory.. . and one day, maybe, I will donate it to someone...
The problem is, the emotional value of things like that are far greater than their commercial value, sometimes the whole life went into those projects... and noone really cares...
|