The 20mm SVBONY UWA works extremely well in slower scopes (f/10 or slower). It also works decently in scopes as fast as f/6, just expect some edge astigmatism. It has just enough eye relief for eyeglass wearers to take in entire field when just touching the folded down eye cup. The field appears to be flat with no need to refocus center to edge. Stray light seems well controlled as is light scatter around bright objects like planets. They work well together as a pair in binoviewers since they are fairly light and compact. There is no noticeable kidney beaning (SAEP), other blackout types, or edge of field brightening (EOFB). Transmission levels seem high thanks to good multicoatings and only four lens elements. The exterior is very handsomely designed as well. Overall, a really good buy.Read full review
Verified purchase: Yes | Condition: New
Checked out the moon in several different phases so far and the quality was excellent. I could see every crater in perfect detail. Also they are made of quality materials and match up to any of the more higher dollar eyepieces. Great value all around and I would highly recommend them.
Verified purchase: Yes | Condition: New
The 20mm is a superior eyepiece. I've not tried the others. It has comfortable viewing, a wide field of view, and excellent craftsmanship. I'd recommend it to anybody.
Verified purchase: Yes | Condition: New
Nice clear views through my new 6 inch F6 Newt. Previously owned a 10 inch Dob with a complete set of ES 82 Series eyepieces. I'm staying with the SVBONY EP's!
Verified purchase: Yes | Condition: New
Well made eyepieces, excellent fit and finish. Love the 68 degree FOV compared to my usual plossl eyepieces 52 degrees.
Verified purchase: Yes | Condition: New
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