Explore Scientific 52° Eyepieces

[Ags]

There was some chatter about the ES 52° series when it first came out, but not much follow up. Are these any good - comparable to a Televue plossl, or more like a generic plossl with more eye relief at shorter focal lengths? I hear that above 20 mm these are literally plossls???

I am thinking about getting the 3mm (for solar in a small refractor) and 30 mm (as a finder/alignment EP).  

[johninderby]

Had the 3mm and it was fine. Not outstanding but very good is the way I would put it. Perhaps slightly better than the BST Starguiders but smaller fov.

No longer have it as I now have a TV 3-6 zoom which is much better optically as well as being a zoom.

Edited May 3, 2020 by johninderby

[Rob]

I have the 6mm. Its not bad, and would agree a step up against many in the plossl range. The FOV for me in the 6mm makes it a perfect Planet / Moon ep. Comfy on eye relief too

[Don Pensack]

Plössls have very little eye relief when shorter than about 14mm focal length.  These go down to 3mm with about 14mm Plössl eye relief.

It's reasonable to think of them as longer eye relief Plössls.