This blog is for all things about the ultra monocentric eyepieces. Feel free to share images, reviews and comments. Post about upcoming focal lengths can also be found here.
12/23/2018 12:33:47 pm
Crisp views with good contrast on slower optical systems (f/9 +), or when barlowed on faster systems (f/5). Afov IS about 35*, and I feel Eye Relief is slightly shorter than the stated 16mm, it is still on the comfortable side of tight without glasses. Far better ER than Plossls, Orthos and other Monos in the same focal length. Wearing glasses was an issue using this ocular. One more thing, the Burgess 10mm Ultra Monocentric snaps into focus on all of my systems from f/5 to f/15. A lot to really like here in a planetary at an exceptional value!
5/6/2019 12:25:32 pm
Full Review of 10mm Monocentric & 24mm Erfle Eyepieces by William A Paolini is available on the website in the Downloads section.
7/2/2019 08:52:52 pm
6mm UltraMono Eyepieces are now in stock and ready to ship.
4/16/2020 01:08:32 am
The 10mm is phenomenally sharp and a truly superb planetary eyepiece! I can't wait to try the 6mm next. Thank you for bringing these wonderful eyepieces to amateur astronomers at an affordable price.
4/3/2021 07:08:00 pm
Is there a date for the return of the monocentric eyepieces in stock?
11/16/2022 01:00:01 am
Did Burgess Optical go out of business? What happened to them?
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