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2" Wide Field Eyepieces

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2" Wide Field Eyepieces

Postby Star Guy on Thu Feb 24, 2011 10:04 pm

Dear Optics Planet,
Do you have a preference/opinion on using the following EPs in a C8 SCT?
41mm Panoptic, 40mm Pentax XW, 31mm Nagler.
Your assistance would be much appreciated.
Thank you!
Star Guy
 

Re: 2" Wide Field Eyepieces

Postby Jne_K on Fri Feb 25, 2011 10:56 am

Hi Star Guy!

I've used and owned Panoptics, Naglers and XWs, but not those specific focal lengths. What are your specific objectives, though? On paper, at least, I like the 31mm Nagler on these, because it gives you a nearly identical true field of view as the Panoptic and XW, but with a touch more magnification. Might as well go for the little extra detail it gives you if the FOV is the same. Yes, you will get a little more distortion at the edge with the 82 degree field of a Nagler compared to a 68 or 70 degree like the Pan or the XW, but this has never been objectionable to me and I am very fussy . At the center of the field, I doubt you'd notice a difference on any of these.
Thanks for posting with us
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