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Thread: 24mm panoptic or Nagler 22mm ?

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    Default 24mm panoptic or Nagler 22mm ?



    Hi everyone - I recently ordered a 10 inch F6 ( focal length 1524) dob and its scheduled to be delivered first week or second week of October. I already ordered a 30mm+ eyepiece to spot DSO etc.

    I want a higher magnification eyepiece for DSO. As per my understanding, the ratio of 2.0 ( eyepiece focal length / aperture ) is desirable for DSO ( because of exit pupil etc ). As per also my understanding and what I have learnt from this forum a good acceptable ratio range for DSO viewing is 1.9 to 2.2.

    I am looking at the 24 mm panoptic or the 22mm nagler. which one would you guys suggest me ?


    the panoptic will give me 63.5 X magnification , and true field of view 1.07 but a ratio of 2.4 . eye relief is 15mm

    the nagler will give me 69.27 X magnification, and true filed of view 1.18 and a ratio of 2.2 . eye relief is 19mm

    From a price perspective, I would go with the panoptic and I also like the shorter eye relief of 15 mm ( still very generous). but then the ratio of 2.4 is putting me off an also the slightly less TFOV

    for the nagler, the price is putting me off and also the 19mm eye relief. I am a bit worried if its going to be tricky to position my eye at the correct distance etc etc. And also those black beans / kidneys that I have been reading online. But then the nagler gives me better TFOV, and its at the 2.2 ratio


    please advise ! thanking you all in advance.

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    Default Re: 24mm panoptic or Nagler 22mm ?

    I don't think you could go wrong with either choice, however here's another option. Pick up an ES 82 degree 18mm & 11mm. Several posters find that combination a DSO Killer in a 10" or 12" Dob. Here's the specs for your scope, a Z10 & Z12 in magnification, exit pupil, TFoV:

    Discovery 10" FL = 1524 f/6

    18mm 85, 3.00, 0.97
    11mm 139, 1.83, 0.59

    Zhumell Z10 FL = 1250 f/5

    18mm 69, 3.66, 1.18
    11mm 114, 2.24, 0.72


    Zhumell Z12 FL = 1500 f/4.9

    18mm 83, 3.65, 0.98
    11mm 136, 2.23, 0.60
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    Default Re: 24mm panoptic or Nagler 22mm ?

    I would like to add that I already have the 11mm explore scientific 82 and the 20 mm explore scientific 68. Maybe I should not shop for any more eyepieces.lol. the reason I was looking for the two above mentioned televue is that I was looking for bigger TFOV than my current 20mm ES 68 since I am upgrading to a 10 inch scope . My current scope is a 5 inch aperture and 650mm FL.

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    Default Re: 24mm panoptic or Nagler 22mm ?

    Don't obsess about the ratio. Close is close enough. Either eyepiece will be good.

    I have a Panoptic 27mm it is an amazing eyepiece. You will love it. Naglers have a good reputation, but I have never used one, so I can't comment.
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    Default Re: 24mm panoptic or Nagler 22mm ?

    First the 22 Nagler is two inch and a bit on the pudgy side. I have 35 and 41 Panoptics and also the 22 Nagler. My vote is for the Nagler 22 it is delightful in all thee of my night scopes, but between the two both are excellent. By the way love my Pan's.
    Bruce
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    Default Re: 24mm panoptic or Nagler 22mm ?

    Quote Originally Posted by mruhomau View Post
    I would like to add that I already have the 11mm explore scientific 82 and the 20 mm explore scientific 68. Maybe I should not shop for any more eyepieces.lol. the reason I was looking for the two above mentioned televue is that I was looking for bigger TFOV than my current 20mm ES 68 since I am upgrading to a 10 inch scope . My current scope is a 5 inch aperture and 650mm FL.
    You already have two nice EPs to cover useful range of mag. for DSO hunting (138x and 76x). 22 mm and 24 mm are quite close to 20mm you already have, and 68 degree is already wide enough (at least from my perspective).

    What is your complete lineup of EPs? We can suggest EPs to plug obvious holes so you will get the greatest return for your investment.
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    Default Re: 24mm panoptic or Nagler 22mm ?

    I have used both series, Panoptics and Naglers, in 12 and 14 inch Dobs. I kept the Panoptics and now own no Naglers. Sold them off.

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    Default Re: 24mm panoptic or Nagler 22mm ?

    Lots of good advice above! The actual exit pupil size is not all that critical, and the ideal view is dependent on atmospheric conditions anyway- so the "best" eyepiece will vary depending on the night and the sky darkness.

    Just a comment about the eye-relief and "kidney-beaning" of the Nagler 22: it has an adjustable eye guard housing so you can optimise your viewing position and avoid that sort of problem...

    All the best in your decision-making!

    - Dean
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    Default Re: 24mm panoptic or Nagler 22mm ?

    all great advice. to answer the question. this is my eyepiece collection : 31mm televue ( about to be shipped ) , 20 mm ES 68 , 15 mm celestron stock/kellner eyepiece , 6 mm plus eyepiece .

    I think you guys are right, I should be ok . I will wait for my scope to get delivered and use it and based on that, I have a better idea which eyepiece I will need.

    But suggestions are welcome to make my set complete
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    Default Re: 24mm panoptic or Nagler 22mm ?

    Quote Originally Posted by mruhomau View Post
    all great advice. to answer the question. this is my eyepiece collection : 31mm televue ( about to be shipped ) , 20 mm ES 68 , 15 mm celestron stock/kellner eyepiece , 6 mm plus eyepiece .

    I think you guys are right, I should be ok . I will wait for my scope to get delivered and use it and based on that, I have a better idea which eyepiece I will need.

    But suggestions are welcome to make my set complete
    You should be good to go for now. ES should have a sale in a month or two, and at the sale price their performance/price ratio is hard to beat.
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