Quote:Wow looks like Many of you like the TV ep: But Manu of you still haven't tried the ES one. Should I flip a coin to see which to buy?
Happy owner of--
A Mag 1, 12.5 inch Porta Ball
A Dual Axis Equatorial Platform
A PST Double Stack
Quote:So basically everything is the same except the brands and coatings?My final decision is I'm going for Televue Nagler 31mm type 5
Cactus Patch Observatory / 14" LX200
"The four points of the compass be logic, knowledge, wisdom, and the unknown. Some do bow in that final direction. Others advance upon it. To bow before the one is to lose sight of the three."
“I am the only person to ever ace a 1951 USAF resolution test. My 'to observe' list says 'done'. I do not use charts or atlases when I starhop; men do not use maps. One of my sketches won an SBIG deep sky imaging contest. I am the life of star parties I have never attended. I never say anything looks like a faint fuzzy - not even a faint fuzzy. Pilots aim green laser pointers at me. Don Pensack proofreads my CN forum posts.” - The Most Interesting Astronomer in the Universe
Here, specifically, is what I'd like to see compared:
1. Lateral color
2. Rectilinear distortion (day and night)
3. Field curvature
Quote:5. Correction for edge of field astigmatism
Quote:6. Comparative comfort (eye relief, visibility of field stop)
7. On-axis image quality
8. Fit and finish
9. Relative value
Quote:If there's already a comparison of the two eyepieces with respect to these criteria, I'd love to give it a read.
400mm f/4.46 self made Dobsonian on Tom Osypowski equatorial platform Skywatcher 130mm f/5 BlackLine (finder, widefield scope and solar continuum scope) Sumerian 250mm f/4.8 Alkaid (as travelscope without platform and on Tom O. platform above).
Quote:Were there any detailed head-to-head comparisons shared?
I think in the absence of methodical A:B comparative data, it's premature to conclude that differences between the two are "small" in degree.
Quote:It’s that magic balance between FOV, quality and cost that ES has met that has made a believer out of me. Bravo ES!
Scopes: LS-8ACF/C8XLT/C6XLT/ E.S Comet Hunter - Mounts: Nexstar/TwilightII/CT Duo-T Cam.: Mallincam Xtreme/SDC-435 Eyepieces: TV Plos:15-32-40-55/Pan:16-27-35-41/T6:5-7-9-11-13/T5:17-20-26-31/Ethos:6-13-17-21/ Brandon 8-12-16-24-32-48-40mm Erfle/ E.S 100º-82º-68º: set / Pentax XL:14-21/XW:3.5-5-7-10-30/XF:8.5,12 Meade 4K UWA, 4K & 5K SWA: Set Baader Hyperion & Aspheric: Set / U.O Orthos ULTRASCOPICS, TMB PLANETARY II: Set /Paragon 30,40
Obsession 20" f/5 Pegasus Optics, #388
8" f/6 Custom Dobsonian
"Things happen for a reason." Its a keepsake phrase that bolsters the ideology of things like 'Destiny' and 'Prophecy'. Are 'mortal' human beings that special that nature would plot its course through being and evolution just to pacify humanity? Mass, order/disorder, cause and effect, probability. These are the things that govern events in reality. Our lives are what we make them; nothing more.
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.
Quote:Had them both for usage in a f5 scope. The 31N was far superior..better contrast, sharper, very little pincushion distortion compared to the 35P..etc..smaller exit pupil..Plainly I could *see* things in the scope's field in the 31N that I couldn't see with the 35P. A no brainer here..I have news for you though..the 21E for the most part outperforms BOTH of them..with the obvious exception of slightly smaller actual FOV and diminished eye relief.
Quote: I don't know if its my eyes, but the 31 Nagler has the worst pincussion distortion I have ever seen! The ES to my eyes has a much flatter field.
Celestron Astromaster 130eq with a 60mm finderscope Antares 105mm f6.28 refractor Bushnell Legend 10x50 TMB planetary 5mm EP Enhanced Wide Angle 6mm EP Plossl 10mm EP Meade 5K SWA 16mm AT Paradigm 18mm Meade 5K SWA 24mm AT Paradigm 25mm Plossl 32mm EP Ultima 2x barlow Baader M&SG and UHC filters.
Quote:Do y'all think there is a market for "astro eyeglasses" that are smaller and inset quite a bit closer to the eyes? My optometrist says can do pretty much anything and he works with these tiny eyeglasses that I would bet could easily be altered to make it easier to get the eye in closer to the eyepiece... He used Zeiss coatings on my newest pair of regular glasses when I told him I was into astronomy.
My eyepieces are made from the waste product of exploding stars.
10XTi 102XLT ST80A(2" Focuser); President, Eypieces Anonymous, Denver Chapter (Hello, I'm an eyepiece junky, what's your excuse?)
DAS Dark Site
Quote:I had a chance to do a side by side comparison of the two. I found that both are excellent eyepieces. One thing I found surprising was that despite
the slightly higher magnification of the ES 30 it actually seem to have a larger total field of view. I was using a 17.5" f/4.5 with a Paracorr for the test. The ES 30 is definitely a great value at 1/2 the price of the 31 Nagler.
Quote:My ES 30mm 82-N2 arrived today. Yes, it weighs in at 2 lbs 4 oz. It is the size of a large Hermes Egg. It is huge to hold in your hands. Its like softball size.Can't wait to see it in my Dob (12.5" f4.0), paracorred of course (to f4.6).
Small scope enthusiast. Large scope aficionado
Quote:I'm sorry to rain on the Explore Scientific parade, but I have to do it again.
EdgeHD 9.25, TSA-120
Quote:I currently own 2 of the 82* examples.
Quote:I have been disappointed with that decision ever since
Orion ED80 - AT Voyager with TNT,pier ext.,Vixon steel tray and Manny's mod.
Omni 120 cg4 with Orion pier ext. and RA drive, Binotron-27 (25mm & 17mm Sterlings)
Orion XT10(Original F/5) SkyStopper Equatorial Platform
Jason Constellation Model 311(Modified with 1.25"Crawford Machine focuser & rings)