Orion XT12i with Swayze-refigured primary & Protostar secondary
Televue NP101 refractor
William Optics Megrez 90 refractor
Universal Astronomics Deluxe Mounts
Quote:Quote:Warm. ...because otherwise if your EPs start out at frigid ambient temperature, the warm moisture radiating off your eyeball and face will quickly fog up the eyelens directly on-axis.
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
Who you jivin' with that Cosmic Debris? "all science is either physics or stamp collecting" -- Lord Rutherford
Orion XT8i Dob 9x50 RACI Finder TELRAD Reflex Sight Agena SWA 38mm 70 FOV 2" EP Orion 25+10mm Sirius Plossl 52 FOV EP ES 82* 11mm, 18mm 2" ES 68* 24mm 6mm, 25mm Ortho. EP Televue 3X Barlow Filters Baader Continuum, UV/IF cut, Lumicon UHC, DGM OIII. SkySafari T-Ring and Adaptor for Olympus E-510 Oly sz-14 SteadyPix Deluxe iOptron SkyTracker 7.7lb Electro Dot Sight RD400X http://www.astrobin.com/users/NeilMac/
NP-101 on a DM-6 C8 circa 1990 Teeter 11" STS/Waite Mirror Zeiss, Fujinon, Nikon, Vixen binoculars Member IDA
Quote:I'd be more worried about ME being cold then the eyepieces.
Quote:Easy, cheap, solution: put one of those pink hot water bottles in your lens case.
Quote:Maybe I have been lucky. I keep my scope and eyepieces in my garage. observed for about an hour with no issues. It wasn't terribly cold maybe 20F. I never warmed my eyepieces. No my question is should I start to?
Teeter STS 11 f/4.3 Zambuto | XT8i | XT8g | XLT 150 | C90 | EON 80mmAT Voyager and Nexstar SLT mountsEyepieces: Mostly TeleVue and PentaxDenk II BV'er, Earthwin PFS-SE, Pentax 10x50 PCF WP II
Quote:Quote:Maybe I have been lucky. I keep my scope and eyepieces in my garage. observed for about an hour with no issues. It wasn't terribly cold maybe 20F. I never warmed my eyepieces. No my question is should I start to? Here's my advice:If it ain't broke, don't fix it.- Tony
ALL my posts should be considered as opinions shaped by MY experiences and understanding of the facts.
14" Strut; 10"XT; 102ES; 22 in Process; 3.5,5,7,10,14,20mm Pentax XW; 17.3 & 12mm Delos; 27mm Panoptic; 20&24mm ES 68; 24mm ES 82; 30mm ES 82; 6&10mm BCO;
Jeff -----TEC 140, Stellarvue SVR90T, SV115T20 and AT65EDQ refractors,Webster D14, C11 EdgeHD Lunt LS60THa solar scope double stacked with LS60FHaTelevue Pan 41; Ethos 21, 17; Nagler 31T5, 9T6, 7T6, 5T6, 3.5T6; Delos 10, 12, ES25, 14, 9Astro-Physics 900GTO with Rob Miller Tri36M TripodDM-4 Mount-Extension-Tripod w/ Sky CommanderDM-6 Mount-Losmandy Adapter/Extension-Berlebach Planet w/ Argo Navis