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;
Solar Imaging Tutorial • Circa 1958 Gilbert 3" Reflector • Astro-Physics 105 EDT (Traveler) • Astro-Physics160 EDF • Astro-Physics175 EDF • Coronado 90/90/30 Hα • PSTs in Ha and CaK flavors • Circa 1810 Utzschneider,Reichenbach,Fraunhofer • Circa 1825 Merz,Utzschneider,Fraunhofer • Etc. etc.
Quote:Those are all good questions I ask myself. But I have to set up and tear down every night, and I already have cable management issues with a bundle of wires to a Mallincam and two monitors, so adding 4 more cables to manage is a big issue. And it all adds time to set up and tear down. I don't think anyone has cracked an optic by heating it to remove dew without going way overboard with heating, and perhaps not even then.
Dave Jessie Outreach Events
Cliff Mygatt Astronomical League Master Observer
Astronomical League Lunar II & Constellation Hunter programs national coordinator President, Olympic Astronomical Society Bremerton, WA
Orion XT12i Fully flocked with Zambuto Mirror, Protostar quartz secondary and Moonlite CR focuser
Meade 8" LX10 SCT Fully Flocked with Magellan I DSCs
Orion 120mm and William Optics 80mm Refractors Ethos 21mm,17mm,13mm,10mm,8mm,6mm,4.7mm,3.7mm Nagler 31mm and paracorr type 1
17.5" Dob "Beta Version"
NP 127 on a CG-5 and CGEM DX
25x100 and assorted other binos
Naglers, Ethos and various others.
"Coffee leads men to trifle away their time, scald their chops, and spend their money, all for a little base, black, thick, nasty, bitter, stinking nauseous puddle water." ~The Women's Petition Against Coffee, 1674If it ain't broke, fix it 'til it is.
Quote:Lastly, why create the headache of having to constantly fritter with dew removal as opposed to having an automated solution?!?
Quote:Same problem with the C11, after 4 hours or so the center of the corrector would still dew up. Does not seem to affect the views all that much so I just leave it alone. Kind of like having a giant central obstruction. Amazing how much of the center can be covered and still result in good DSO views. I suspect planet viewing would be in the toilet.
Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/
Quote:Quote:Same problem with the C11, after 4 hours or so the center of the corrector would still dew up. Does not seem to affect the views all that much so I just leave it alone. Kind of like having a giant central obstruction. Amazing how much of the center can be covered and still result in good DSO views. I suspect planet viewing would be in the toilet. Doesn't have to be this way. I use a C11 down here on the Gulf Coast where dew is incredibly heavy, but my corrector stays clear all night. Secret? A temperature controlled dew system like the DewBuster or one of the newer Kendrick controllers...
Quote:I need four leads. I mount a C8 and 80mm refractor on an iOptron MiniTower Pro, so I have two objectives and two eyepieces I need to de-dew. The eyepieces get wetter than the objectives because they are more exposed. I use a large plastic dew shield on the C8 and the built-in dew shield on the refractor.
George N Obsession 20 Optical Guidance Systems 10" F/9 R-C Cass 6" F/5 & 8" F/8 home-made Newts Explore Scientific 127mm ED MI-250 mount Denk II bino-viewer, with PowerX and Newt reducer, Member, International Dark-Sky Association
Quote:So, what do you think about the Dew-Not controllers and heater strips?
Quote: Quote:Lastly, why create the headache of having to constantly fritter with dew removal as opposed to having an automated solution?!? For some of us, dew is relatively uncommon, a hair drier is useful on those rare occasions when there is dew. I have had a couple of 12volt hair driers for use as dew heaters. The standard 12 volt hair driers are 120 watt, that's 10 amps. It's pretty feeble, a typical 120volt hair drier is about 1500 watts...Jon
Shneor 22" f/4 Sayre Monocular Tom Osypowski Equatorial Platform (since 1995) Assorted small telescopes, 76-152mm; 25mm ES100°, 20mm ES100°, 13mm Ethos, 9mm ES120° (serial #18), 9mm ES100°, 8mm Delos, 6mm Ethos, 4.7mm Ethos, 3.7mm Ethos SX, 2.5mm Nagler Type 6, 2" 2X Powermate, 2" 1.5X Proxima Barlow, 2" GSO Coma Corrector, 18mm BCO, 10mm BCO, 6mm BCO and other 1.25" eyepieces. Zhumell 8x42 Nova Phase-coated ED Binoculars Burgess 25x100 Binoculars