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:Hello again !Since ES has still production issues regarding the short fls i thought that maybe i could use some orthos to do my job.I will mostly use them on DSO's and not that much in planets(never been my favorite). Has anyone tried any orthos on galaxies,pns,and globs?Especially at 6-7mm range?Clear skies.
Jeff Morgan - Wile E. Coyote School of Telescope Making
16" AstroSky F4.5 C/W Skycommander, TEC 140, 6" F8 Edmund, 120 Skywatcher F5 SW EQ6 AP SPL 5mm Carl Zeiss Jena .965 6,10,12.5,16,25, Pentax 3.8mm XP, 7mm SMC, 7XW, 10XW TMB SMC 8mm,TMB Planetary 2.5,6, TV Smoothie NJ's Plossls, 14 Delos, Nagler 20T2, WO 4,28 UWAN, Orion Zoom 7.5-22.5, BGO 9 Binoculars Pentax PCF 7x50, SPACE, "A PORTRAIT OF PERFECTION!" Tony M
Scopes: Celestron 9.25, Orion 80MM and 120MM EON Apo Solar: Lunt LS60THa/PT/B1200/50DS Binos: Canon 15X50 IS Mounts: CGEM and LXD75 Eyepieces: Explore Scientific, Meade & TeleVue Camera: DMK 41, Canon 6D, SBIG STT-8300 Messier Certificate # 2508 My Images: http://www.astrophotogallery.org/u342-hfjacinto.html
Quote:I used TMB supermono's and if if looking for the clearest planetary nebula and planet eyepiece, that was it. As for Globulars, it was weird, the extra FOV of a widefield made the globular pop more. This was becuase I needed to use less power to fit it all in with a TMB, so if looking for a PN buster the TMB's are it, otherwise get a few widefields, they frame almost all other objects better.
Happy owner of-- A Mag 1, 12.5 inch Porta Ball A Dual Axis Equatorial Platform A PST Double Stack
I'd rather be driving my .
Quote: I believe the larger the scope the greater the difference [with better eyepieces].
The opinions expressed herein are solely mine as an amateur astronomer hobbyist & consumer. Information herein was correlated from experience, discussions with others, & research from multiple sources freely available at time of posting. All reasonable care & skill was used, but no warranty is made as to accuracy, & liability cannot be accepted for errors/omissions. This is for information only and not intended nor implied to be a substitute for professional advice.
Refractors Reflectors Two Cats A few eyepieces
Quote:Quote: I believe the larger the scope the greater the difference [with better eyepieces].This has certainly been my experience over the years of eyepiece shootouts.
Vixen 140mm Neo-achro, 2" AP Maxbright diagonal, 40mm Orion Optilux, 35mm, 30mm, 18mm, and 15mm Ultrascopic/Ultima, 28mm & 20mm ES 68, 19mm TV Panoptic, 5.5mm Meade UWA, 2.4x 2" Dakin barlow (prototype barrel),1.6x Antares barlow.
Quote:When I met the guy I sold my set of Pentax SMC Orthos to, I expected he wanted them for planetary observing. I came to find out that he was part of a group of big Dob owners that travelled to local dark sites and a DSO hunter. He explained to me that he and his buddies didn't care that the AFOV was small on these Pentax Orthos as what mattered is that their transmission and contrast was so good he said that they easily picked up more details and structure on faint galaxies and nebula. As example, here's a review that includes simulation of the difference about 1/2 way down - 12mm Tele Vue Radian & 12mm SMC Pentax XF.
SteveC TEC 140 Intes Micro 715 deluxe TEC 110 SolarMax 40 Losmandy G-11 w/Gemini, CGEM, Vixen Skypod TEC EP Turret, AP Maxbright, Denk P/S Diagonal, Denk II B/V, EarthWin P/S Slide TMB Supermonos, ZAO IIs, Zeiss Monocentrics, Naglers, 24mm Panoptics, 14mm Meade UWA, 5mm Pentax XO, 20mm ES100, and 2.9mm, 4.4mm, 5.9mm, 7.4mm Couture (ball)
Quote:I've always thought that the Radians looked dim.-Chuck
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:I've always thought that the Radians looked dim.
I try not to make sell decisions rapidly, especially after selling the 17T4 Nagler.
But after the first outing with Brandons, I listed my Radians on Astromart within a couple of days.
Quote:I've always thought that the Radians looked dim.
Orion Optics 14" f/4.5 Orion Optics 10" f/6.3 Research Grade lambda/10 Orion USA 10" f/4.8 Equatorial Reflector EQ6 Skywatcher 120 ED Coronado SolarMax 60mm Skywatcher 80 ED + Herschel wedge Radians ,Pentax XLs, Orthos , TV plossls , Hyperions...and many others to experiment with.
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
Quote: Wow, I owned the 8mm Radian, and was impressed with its light transmission. I can honestly say that I never witnessed such a dramatic difference as was shown in the Sombrero drawing when I compared it to other eyepieces.
Quote:As far as Amalia's report goes, I get the feeling that she was using one of the first generation Radians which didn't have the transmission the latest batches of Radians had.I'm almost certain that this is what happened because I've gone through three different Radian sets over the last 13 years and there is a noticeable difference amongst them.
Quote:One piece of advice is valid though. The higher transmission Radians are the ones that lack the lower knurled grip on the lower part of the housing, like this one.http://www.televue.com/engine/TV3b_page.asp?id=50This is the old one:http://www.buytelescopes.com/televue-3mm-radian-125-eyepieceGeorge
Quote: I am going to put my 18 Radian (old version) versus my XW 20 for some 'transmission' testing, to see if there is a visible difference.