TeleVue Radian 8mm

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TeleVue Radian 8mm
This is one fantastic eyepiece! It is at that particular focal length that really allows good sharpness and contrast before it gets too low and starts washing out from magnification and light passing through those many elements of glass. Saturn and Jupiter are very, very sharp and contrasty. Not quite as bright as my 9mm UO Ortho, but then again, only 4 elements of glass makes brightness as different issue. Really is quite a large EP and find the click stop and pupil guide very good additions to this EP. Jupiter shows very nice cloud banding and the lunar landscape literally comes alive with razor sharp craters and mountain ranges. It is pricy, but when you look through a Radian, you will see the difference why. Excellent EP

Overall Rating: 10
Optics:10 Value:10
Weight: 1 (Unreliable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=229634

TeleVue Radian 8mm
What an incredible EP. Perfect F/L to still barlow if needed with a fine barlow, due to the amount of elements you will be looking thru. I use this EP the most for planetary and lunar views, but it works great for globulars and nebulousity just as well. A little washout when barlowed, but no great complaint, due to the razor sharpness of this planetary "wonder!"

Overall Rating: 10
Optics:10 Value:9
Weight: 1 (Unreliable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=237566

TeleVue Radian 8mm
I own the 8mm and 4mm Radians and find both EP's Outstanding in color rendition and sharpness. The instajust can be a pain sometimes due to constant readjusting for "many eyes" when at a starparty. Plenty of eye relief of course, and the images are razor sharp through my teleVue 76mm APO. Personally love this EP for views of Jupiter and it's moons at x60, and the Lunar lanscape is quite breathtaking with this EP, even more with the 4mm Radian. Not as bright and contrasty as my UO Ortho 6mm at x80, but sharper and and finer detail noted. All in all a very good EP, I think the price is a little high when there are so many other EP's that give views almost as good for a fraction of the price...but then again, it's a TeleVue :

Overall Rating: 9
Optics:9 Value:7
Weight: 5 (Veritable Vote)
Date:
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Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=238149

TeleVue Radian 8mm
Altho' the Radian EP's have excellent eye relief and true FOV , they do not seem to be as sharp and contrasty as the TMB Monocentrics. I have used this EP to view Saturn at 125X in my 'scope with reasonable satisfaction , and it works fairly well on globular clusters (M15 and M79 , for example). Even tho' it is not one of my favorites , I still consider it as a "keeper".
Update 4/18/2005: In comparison to my SMC Pentax 7 XW, this e.p. comes in a distant second place. My biggest knock on this 8 mm eyepiece is a lack of sharpness and some lateral color at the edges.
I am now planning on selling this one to expand my Pentax collection!

Overall Rating: 6
Optics:7 Value:7
Weight: 5 (Veritable Vote)
Date:
By:
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=332287

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