|
Plate glass? pyrex? Bk7? I think for a nice cheap 16" light bucket the figure of the mirror itself matters much MORE than the substrate used .
If it is cheap, I'd lay down my money for a nice size scope like this because it would mainly be used for "deep sky" work anyways.
People need to not be so fussy about what the mirrors are made out of, heck even the older 100 inch mirrors were made out of PLATE GLASS with bubbles all inside of it and those were amazing telescopes.
------------------------------
Mark
12" gso scope
|