1. It’s very heavy so I will get balance problems when changing EP, which I will find frustrating.
2. I already have Nagler 26, N20 and Pan 35
what do you reckon?
I have had the 21mm Ethos for many years, since not long after I purchased a 13mm Ethos, and not long after it was released. Back then, the price was not as high as now, maybe $750 (USD), and I was able to trade 3 other eyepieces for it. I have used it in many scopes from ~f/7 refractors to my then 12.5" dobsonian. It delivers excellent high contrast wide field views that are, in my opinion, unmatched at this focal length. (I have compared it extensively over many sessions with a 20mm Explore Scientific 100 degree and also a 35mm Panoptic). This is the reason it is still with me.
As you indicated it is very heavy - and I have been considering selling it for this very reason for some time. If you will be frustrated with balance issues, you may want to skip this wonderful eyepiece. The main reasons I have not sold it are 1) the view is unmatched in anything I have tried or seen at this focal length - and I do appreciate top notch views. 2) I have tried unsuccessfully to purchase 5 samples of the 26mm Nagler here and on Astromart and have never been the first one to respond. If I could find one, I would buy it and compare the views with the 21mm Ethos, as well as the ergonomics and decide from there.
Long way of saying I would recommend you buy one and compare it to your 26mm and 20mm Nagler, and decide which you prefer to use. (And if you decide on the Ethos, you have a willing buyer on the 26mm Nagler ).
Edited by Alan S, 26 May 2023 - 11:00 AM.