... and still the best wife I could wish for!
http://www.astrobin.com/users/orion69/ TS 150 mm APO Triplet, Feather Touch 3.5" focuser, Micro Touch Focusing System CGEM on custom made platform Atik 383L+ mono, Atik filter wheel, Baader LRGBC + narrowband filters SX Lodestar + TSOAG9 Dew-Not heater
Quote:Harvey,Could you post some more details about this scope? And what was the source for the Kruppax (Public Missles?)? Looks to be all A-P gear behind the dew-shield.Thanks,
Quote: So what would be ideal material for imaging refractor tube without active cooling(fans), Aluminum, Kruppax or Carbon fibre?
MarkLeica 8x20; Nikon Action 7x35; Vixen Apex Pro 8x42; Orion 15x63; Docter Nobilem 15x60WO Megrez II 80 FD / APM 107mm f/6.5 / Mewlon 210 on DM-6 + Berlebach Planet
Binoculars: Miyauchi Saturn III - 33/39/50/71/150x100, WO 22x70ED, Fujinon 16x70 FMT-SX Pentax 10x50 PCF-V, 10x43 DCF-SP, 6.5x21 Papilio
Nikon 10x35 EII, 7x35 E, 8x30 EII, 8x23CF AS Diplomat
B&L 7x26 Custom
Scopes: C9.25, TMB130SS/FT, SV80S-LOMO 80/480
Quote:Worst dewing/frosting telescope I've owned: Tak FS128. Dewed up FAST. characteristics: All aluminum, extremely light, short dewshield with no lip.
Best ever: TMB175. Never dewed. Never frosted lens even as you have seen in that pic with frost all over the tube. Generous length Kruppax dewshield with lip, Kruppax fiberglassed tube.
Quote:Mark, is there something about the construction of your 107/700 that makes it resist dewing better than other scopes you've had? The tube is spec'd as aluminum; is the dew shield a composite material?
Quote:I built all mine with 8-9" of in-focus for unbarlowed binoviewing with a mirror diagonal. NO regrets.http://www.pbase.com/mclemens1969/image/68819908green = 2" diagonal optical path lengthgray = binoviewer path lengthpurple = light cone