I am not an eyepiece person but had the opportunity to have a look through an Ethos recently. I was very surprised at the wide FOV. I haven't done a direct comparison to Naglers. I'm used to using at 22mm Panoptic (68 degree FOV I think).
Looking through the Ethos I could swear I couldn't find the edge of the FOV. I had my eyeball at what felt like a 20 degree angle to the eyepiece surface and could swear I still could only see stars out the side if the eyepiece. It was like the telescope was a "tardis telescope" which on the outside looked small but on the inside was the size of a whole galaxy! It felt a bit like I was being fooled, that the sky was being projected to a larger area than it should have been. Hard to explain really.
Anyhow, I don't plan on buying one anytime soon, my 22mm Panoptic and new 7mm Nagler will do me just fine between photography stuff. Besides, the size of the Ethos put me off a bit.
Roger.
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