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Celestron x-cel 82fov 1.25 inch vs Celestron Luminos 82fov 2" on edge 11, x-cel wins?

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#1 markm75c

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Posted 18 September 2019 - 12:35 PM

Having recently upgraded from an 8se to edge 11 (and to cem120), the edge 11 came with an 82fov 2" luminos eyepiece (23mm with 20mm eye relief), whereas i still had on hand my celestron x-cel 1.25" 25mm eyepiece.  I think they are both considered 82fov (edit: the xcel is 60 actually) and 16mm eye relief

 

I viewed a wide star field in both, and found the 2" one to be very tight, having to poke my eye around to see the whole field (i wear glasses too).

I put the 1.25" one in and it was night and day better.

 

Is this typical?  Or does it depend on model.  IE: i was before, considering getting some 100 fov's as well, in the 2" range thinking they would be pretty good on the edge 11.

 

I guess i'm a bit of a newbie to the 2" realm here.

 

Thanks in advance


Edited by markm75c, 19 September 2019 - 09:38 AM.


#2 eros312

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Posted 18 September 2019 - 02:02 PM

The x-cel is 60 degrees. 



#3 markm75c

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Posted 18 September 2019 - 02:21 PM

The x-cel is 60 degrees. 

Oops corrected that.  This makes for an even bigger mystery, 60<82 so in theory the 2" 82 should prevail.



#4 SeattleScott

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Posted 18 September 2019 - 05:53 PM

X-cel is 55 or 60 depending on the generation.

#5 markm75c

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Posted 19 September 2019 - 09:39 AM

I tried both again last nite, still somewhat leaning towards the 1.25

 

The 1.25 has 16mm of eye relief, the 2" has 20mm, that stat confuses me, you would think especially for a glasses wearer that the 20 would win.  But even visually looking at the opening on each, the 1.25 is larger despite smaller fov.

 

But, you can see slightly more around the edges on the 2", granted i have to pretty much smoosh my glasses around to see it.




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