Quote:...Since the vendor has sent me another mirror, my job for the moment is to determine which is the better of the two. Besides star tests and other nighttime viewing comparisons, are there other things I can do to evaluate them? Perhaps even in daylight?
Quote:One thought was to put up a reflective object at a distance to do star tests during the day, but I haven't been able to locate a suitable place on my neighbor's property to put it!
Quote:I have a direct view to installations on a nearby mountain top. Will views of something like that be useful in comparing these mirrors?
Quote:I mic'd the new mirror's thickness and it's within .010" to the edge of the mirrored surface all around. Squaring inconsistencies of the tool to the bottom of the blank could easily be the cause of that...
AD10, NoName8, DS-16 with Spooner primary.
ES, Sterling, Parks, Baader, TV, GSO EP's and a lone Nagler.
Nikon, Celestron binos
My eyepieces are made from the waste product of exploding stars. 10XTi 102XLT ST80A(2" Focuser) XW: All; XO: 2.58 Televue: Naglers-T1 Smoothside-full set, 17T4,12T4,Ethos 17,4.7; plossels-40,32,20,17,&7.4mm; Pans-22,24mm; Delos-6,8,12,17.3mm ES100: 5.5,9*,14,20 ES82: full set ES68: 16,20,24,34 NLV: 5,9,10,15 Ortho: HD-7,9; OPS-9,12 Meade RG 7mm Other: Pentax 12.5K(.965), 10mm Parks Zoom: Nag3-6 *=on b/o DAS Dark Site
Quote:If the seeing was "good" (and you are in NM, which is about as close to viewing heaven as you can get) you should have been able to push that 10" WELL above 175X.
Quote:Are you sure the seeing and transparancy were good, because it sounds like you are describing an "average" night for what your scope should do.
Quote:Keep at it though, the AD10 is a great scope. And some night, the viewing really will be "good" and then you'll see what that scope can really do...
Quote:I'd still check the mirrors though for pitting, etc...it could just be its and older coating and is coming up on the time for recoating......