Quote:
Originally Posted by GrahamL
I had a 22 nagler for a few yeas, aside the ultra wide view of the 22 which is really nice the edge of field was always a little distracting.
cheers
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I would expect that if you used the 22mm Nagler in your Newtonian without a paracorr. In my newtonians both the 17mm and 22mm Naglers without the paracorr, are pretty average eyepieces. With a paracorr they are both excellent performers. However, they are both very heavy eyepieces (17mm is heaviest) and combined with the paracorr it makes a fairly heavy combination to balance at the top end of a smaller dob, especially if it doesn't have a Servocat drive to help hold it in place.
The 24mm Panoptic is a great eyepiece but eye relief is too short to use with eye glasses, hence I don't really use one , when I can help it. The 27mm Panoptic has greater eye relief, which makes it easy to use for eye glass wearers and it has a much larger eye lens which IMO offers a far more submersive view than the 24mm Panoptic. While the 27mm Panoptic is about the same physical size of the 17mm Nagler T4 it is only about 60% of the weight. In addition like the 24mm Panoptic, the 27mm Panoptic works quite well in fast Newtonians without a paracorr.
I actually use the 27mm Panoptic as my low power wide field eyepiece in my 10" Newtonian, in preference to the 31mm Nagler due to its compactness, light weight and great views. The 27mm Panoptic is a 2" only barrel so not able to be used with a 1.25" barlow whereas the 24mm Panoptic can be used with a 1.25" barlow.
Cheers,
John B