Astromania 1.25 Inch HD Fully Multi-Coated Telescope Eyepiece - 20mm Ultra Wide Angle 66° View with Long Eye Relief - Premium Astronomy Telescope Accessory for Stargazing, Moon Observation & Celestial Viewing

I ordered two to use in a new, very expensive 120mm binoscope, so as to evaluate the use of such a high magnification with this instrument. Given that the price of these is so much lower than the brands which typify “high quality eyepieces”, I didn’t expect much.I was seriously wrong.After first light with these, I was left with the feeling “well...they work...”, but I wasn’t blown away.Until, I borrowed a buddy’s 6mm Delos, and plopped it into one of the binoscope’s 2 eyepiece holders while leaving the Astromania 6 mm in the other holder. Now, they are extremely different designs - one has a 66 degree field of view, the other 72 degrees. One is about 3 inches long, the other is about 7 inches long, so when I started switching back and forth from one to the other, I expected the comparison to be fruitless - the Astromania would be darker, have less contrast and less visual acuity, and visual aberrations...Wrong! This little guy works incredibly well! The comparison left me with the thought that the $300+ Delos is better, but not by amount of the price difference.The final test was a taking a peek at Polaris and seeing if I could split the double (see both stars that make up that system). I live in the City of San Francisco, and was viewing from outside my home there, so seeing is typically degraded by proximity to the ocean and always by the excessive light pollution. But low and behold, I could spit the faint partner in that system with both! But, when I substituted the Delos with a 3mm Nagler from the same company which makes the Delos, I was shocked to see the difference - I could not see the faint double through the 3mm Nagler, while it was clear as day in the 6mm Astromania!I would recommend that you try this out if you’re certain that a 6 mm would be good for your setup.