79 replies to this topic

[Bob4BVM]

 

Joe:

 

Congratulations on your new eyepiece.  It's a keeper..  Don is a treasure.  I bought my 30mm UFF from Don... 

 

Jon

I agree, Don's a keeper too !

I got my APM 30UFF's from him as well, both of them.

[Bob4BVM]

The 28mm 82° UWA eyepiece in the same price range would be a decent choice too.

[sold in the US by Astronomics and Stellarvue.]

But, it is not glasses-compatible, and has a bit of edge of field aberrations.

Most find the aberrations ignorable, so it's mostly the higher weight and smaller eye relief that are its main negative points.

If the edge of the field correction is an important characteristic for you, the 30mm UFF is better corrected.

[sold in the US by Celestron dealers and Stellarvue.]

What i like about the APM 30 UFF is the great edge of the field correction which is important  to me as it makes the FOV appear my wider than an EP with a blurred EOF view.

That, and it is very well adapted to 2-eyed viewing, which in itself presents a much expanded perceived fov, so the "meager :)" 70* is plenty in my case.

[davidgmd]

What i like about the APM 30 UFF is the great edge of the field correction which is important  to me as it makes the FOV appear my wider than an EP with a blurred EOF view.

That, and it is very well adapted to 2-eyed viewing, which in itself presents a much expanded perceived fov, so the "meager :)" 70* is plenty in my case.

  
Ooh, 2” binoviewers! I didn’t realize there was such an animal until your post got me looking. 

[Bob4BVM]

  
Ooh, 2” binoviewers! I didn’t realize there was such an animal until your post got me looking. 

"binoviewers "   ...what is that ?

 

 

 

Edited by Bob4BVM, 16 May 2025 - 11:02 PM.

[Joe Cepleur]

The Celestron Ultima 30mm Flat Field Eyepiece arrived yesterday. As I had hoped and predicted, my "gently used" example direct from Celestron is an absolutely new condition. Optics have not a spec of dust on them! 

 

Naturally, forecasts predict clouds for a week! 

Edited by Joe Cepleur, 17 May 2025 - 01:06 PM.