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Jim52
sage
Reged: 01/18/04
Posts: 342
Loc: Kirkland.Illinois
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I'm not really qualified to give an in-depth EP report, but I will say I'm happy with this EP! Didn't have as much coma near the edge of the FOV as I was worried about. I usually don't look too near the edge anyway, but this time I did, just to check it out. I was looking at a star-rich area in Cygnus for the test. This is also the widest FOV EP I own & I love it! Figure it's about 2 degrees according to the math. I'll have to find 2 stars 2 deg. apart & see if they fit. Did not have any blacking out near the edges if I moved my head around. I've got a 25mm EP that drives me nuts sometimes with this problem! Nice EP and affordable. Jim
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Jim Sheehan SVP 8 EQ/Wilcox Rings
Orion 120 ST
Orion Starblast
Cheap 10X50's
2 reflectors,1 refractor,1 great wife!
Only 372 Herschels to go!
"Seems like just one time I'm feeling good...Thank the Lord for the nighttime" Niel Diamond
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jfaaz
sage
Reged: 05/13/04
Posts: 445
Loc: Connecticut
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I have the 30mm GSO also. I love it in all my scopes.
I sold my 30mm BW Optic, it was to heavy and soft around the edges.
I was looking at the Cygnus region last night with the 30mm GSO. I find it a very bright eyepiece in all my scopes (4" Achro, 8" Newt & 10" Newt).
Teemed up with my new 22mm Panoptic, many DSOs are found more expediantly.
I am patiantly awaiting the arival of my Burgess 26 & 32mm SWA. I have the complete WA set and love the perfomance they give me.
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Jon
XT10i
8" Homemade Dob
6" DSH
WO ZS80/CG-4
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lighttrap
Reged: 02/06/04
Posts: 3833
Loc: cloudy, foggy, humid NC, US
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Quote:
I'll have to find 2 stars 2 deg. apart & see if they fit.
Jim, see if you can get the 2 base stars of Lyra to fit. They're listed on EdZ's list of measured separations as being 2* apart.
Quote:
I sold my 30mm BW Optic, it was to heavy and soft around the edges.
This was my conclusion as well. I had one on trial, pending that it work at f/5, and sent it back due to really terrible edge performance. I read somewhere that this may be due to only getting the advertised FOV by using the barrel as the fieldstop. I don't know if that's true or not.
But I'm MUCH, MUCH happier with an even less expensive Burgess 32mm 2" which doesn't attempt quite so much claimed FOV. I keep wondering if the Burgess and GSO eyepieces aren't same sourced. No proof of that, but it is one suspiscion.
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18" Starsplitter II f/4.5
8" Hardin Dob f/6
C5 workhorse mini SCT f/10 or f/6.3
70mm TV Ranger dual purpose birding/astro
77mm Leica Televid APO
16x70 Fujinons on UA Deluxe Mt.
12x50 Nikon SE
8x30 Nikon E2s
and many others
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Jim52
sage
Reged: 01/18/04
Posts: 342
Loc: Kirkland.Illinois
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lighttrap, thanks for the tip! I'll try Lyra next time I'm out. Jim
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Jim Sheehan SVP 8 EQ/Wilcox Rings
Orion 120 ST
Orion Starblast
Cheap 10X50's
2 reflectors,1 refractor,1 great wife!
Only 372 Herschels to go!
"Seems like just one time I'm feeling good...Thank the Lord for the nighttime" Niel Diamond
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erik
telescope surgeon
Reged: 01/30/04
Posts: 24019
Loc: Hawaii 19 N lat -155 Long.
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i finally got to compare the 30mm GSO with my two 2" ep's, a 35mm orion deep view, and a 40mm orion optiluxe. we all agreed that the GSO had less field curvature than the deep view. it wasn't quite as sharp or "contrasty" as the optiluxe, but the GSO is also 1/3 the price. i was impressed with it, especially for its price.
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-Erik Wilcox
Homebuilt 16" Truss Dob
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson pipemount
Orion 10x50 binos
Homebuilt 80mm f/5 refractor
Mirador 60mm f/12 1960's refractor
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Jim52
sage
Reged: 01/18/04
Posts: 342
Loc: Kirkland.Illinois
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lighttrap, here's the update. Both base stars of Lyra DID fit in the FOV with the Ring Nebula nicely framed in the middle! Nice sight! Thanks, Jim
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Jim Sheehan SVP 8 EQ/Wilcox Rings
Orion 120 ST
Orion Starblast
Cheap 10X50's
2 reflectors,1 refractor,1 great wife!
Only 372 Herschels to go!
"Seems like just one time I'm feeling good...Thank the Lord for the nighttime" Niel Diamond
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TOMars
sage
Reged: 02/14/04
Posts: 233
Loc: Lancaster, CA
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Lets convince GSO to start making Ritchey-Chretiens and APOs so we can all finally afford it. How about cars? I dont know about you guys, but my GSO is one of the best buys Ive ever made.
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Tom Varden
Lancaster, CA
http://labmonkeyonline.com/astrophotography_by_tom_varden.htm
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