Astronomy educator/Sidewalk astronomer
Owner of Astronomy Delight franchise
18 inch f4.42 Dob on eq platform w ST120 f/5 finder
12 inch Zhumell Dob
8 inch f/6.9 home made Dob with Seevers optics
William Optics red 10th Anniversary 80mm FD
C8 XLT on Vixen GPDX
26lb eyepiece box
Cernan Space Center astronomer
Member of Northwest Suburban Astronomers
We mostly come out at night... mostly.
GSO Z8 Degree Circle & Digital Level
Celestron 4"(102mm) SLT 660mm f/6.47
2" 30mm GSO WideView
9mm GSO Plossl
ES 82's : 4.7mm, 8.8mm, 11mm, 18mm
BGO's 5mm, 6mm, 9mm
2" 2X ED Astronomics Barlow & GSO 1.25" 2x Shorty
8-24 Baader Zoom III
Baader M&SG, Semi-Apo
Jeff Morgan - Wile E. Coyote School of Telescope Making
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.
10" OO VX, 6" iOptron Mak-Cass, Orion 100ED
Quote:Consider the hyperion roundup by Daniel Mounsey - he compares the hyperion and ethos at 17mm - which might give a clue about Hyperion vs delos.
Dave JessieOutreach Events
Quote:From what I have heard, one doesn't even need a Paracorr at F4.5 with a Delos or LVW. I do have some LVW's and they are sharp to the edge in my F4.8.
Meade 305 ƒ/10.4 LX200 • Royce 250 ƒ/19 Dall Kirkham • AstroTech 250 ƒ/8 RC • AstroTech 250 ƒ/4 "RFT" Newtonian • Meade 80 ƒ/6 ED APO • TEC 140 ƒ/7 APO • Orion 180 ƒ/15 Mak Cass ... Denkmeier II binoviewer - Nikon 8x60 binocular
Astronomical Files from Black Oak Observatory
Quote:Bring a 6mm Delos though, because I no longer have it! Ask Hernando, he has it now,
Blog: Astronomy & Living by Hernando
Vixen 140mm Neo-achro, 2" AP Maxbright diagonal, 50mm Celestron Vixen Silvertop plossl, 35mm, 18mm, and 15mm Ultrascopic/Ultima, 28mm & 20mm ES 68, 19mm TV Panoptic, 5.5mm Meade UWA, 2.4x 2" Dakin barlow (prototype barrel).
Stellarvue SV70ED, UA DwarfStar, Oberwerk / AstroTech AT80EDT, AT Voyager / Celestron C6XLT, AT Voyager / Meade 8" LightBridge / Vixen VMC 110L (Baader Solar Film), Porta II / Celestron Nexstar 102GT, ES Twilight I / Oberwerk 20x80 DIII, Orion 10x50 Resolux
Quote:I had a chance to use the 17mm last night with my f/4.4 with paracorr and was happy with the off axis performance. Stars stayed pretty sharp to the edge but I didn't do any deep sky viewing with my limited time I had. I suspect it is a good alternative to the Delos but still wanna do more comparisons soon.
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.
Quote:Quote:I had a chance to use the 17mm last night with my f/4.4 with paracorr and was happy with the off axis performance. Stars stayed pretty sharp to the edge but I didn't do any deep sky viewing with my limited time I had. I suspect it is a good alternative to the Delos but still wanna do more comparisons soon.
If it's like the other Hyperion/Stratus eyepieces, look for the edge sharpness as well as a "bright edge." In my experience the Hyperion/Stratus's are not evenly illuminated across the field and are pretty messy off-axis in a fast scope.
Excellent choice! Make sure you keep us posted though!
However, I get the feeling that you should have posted it on the Radian 18mm thread,right?
Quote:Let us know how the 17mm Vixen LVW compares here Markus.
Quote:I understand this is being shanghai'ed. I am interested in the 17mm wide view eyepieces out there, which are priced from average to expensive. I like TV eyepieces, but am not wedded to them or others. An acceptable Vixen LVW version causes me no embarrassment to use it. Similarly a Hyp, is equally acceptable. I just want to learn from others here on the plus/minus of the choices.
SyedTeeter 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