I've looked as well and as long as you stay under 90mm, a very good triplet is within reach of your budget. The prices jump dramatically after 80-90mm. As you found out smaller triplet refractors will surprise you on how well they can bring in DSOs with processing. I only mention the triplets, there are many good doublet APOs, but you want one as color free as you can get when pursuing AP I would think. The used market is a viable option of course. You can up your game so to speak there.
Stellarvue is taking orders on their beautiful SV80st2ps 80mm triplet with the Stellarvue 2.5" rack and pinion focuser, Ohara FPL-53 glass, etc. This prize goes for $999.
Last edited by John999R; 04-09-2012 at 06:58 AM.
CPC 1100 w/f6.3 reducer, ADM knobs & WO focuser, Coronado PST, Orion by Vixen 102, ES AR152,
SV70ED (last new one in the world), Orion mini 50 guider w/helical focuser, 7x50, 12x60, 20x80, 15x70 binocs,
JS binoviewers, CGEM w/Orion pier, ES 4.7mm, 6.7mm, 18mm, 28mm, TeleVue Delos 14mm.
Accessories: Phottix wireless timer/remote, Orion sky glow imaging filter, Canon T4i, EF 50mm 1.8, EF 70-200mm f/4L, 1.4X extender, PS CS5
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