Kowa 55A/55S (1 Viewer)

[Chotacabras]

$2,300 in the US. Specs very similar to ATC/STC. Eyepiece is integral. Looks like a single mounting like the Swaro, grrrr.

There's an advantage to this, which is lower long-term likelihood of moisture/dust ingress. Irritating if you'd like to change eyepieces, I know. But advantage nonetheless.

 

[Bill Atwood]

There's an advantage to this, which is lower long-term likelihood of moisture/dust ingress. Irritating if you'd like to change eyepieces, I know. But advantage nonetheless.

Given I've had zero issue with moisture and dust in scopes after using them for over 30 years it's not an advantage at all.

 

[Chotacabras]

Given I've had zero issue with moisture and dust in scopes after using them for over 30 years it's not an advantage at all.

Well done you Bill! But if you live somewhere very humid or very dusty, and/or subject the scope to heavy field use, and/or frequently change eyepiece outdoors (etc etc) then I think it's probably a relevant risk. In my opinion 😉