Excellent service from OPT! The quality of the eyepiece is superior and delivery was as promised. I was regularly updated as to when the eyepiece was to be delivered. Everything went very well! Thanks!
I'm not any kind of an expert when it comes to nit-picking the fine details, but this 8.0 mm eyepiece outperforms every other eyepiece I currently own. I couldn't be happier.
OMG, the 8 Ethos.....what can I say. Finally Sunday night at midnight I set up FC-76 to try out the new 8 Ethos along with the 13 Ethos and compare them to the 8, 13, and 17 Baader Hyperions. The 8 just like its bigger sibling is just simply outstanding! Two things that immediately jumped out at me, the stars are tighter/sharper and brighter when comparing the Ethos to the Hyperions. The sharper star images make the stars appear brighter to my eyes. I have no idea many elements and or what sort of hybrid molded aspherics are in the Ethos according to the rumors of the design, but they just do not get in the way of the views. At f 7.9 in the FC76 s the stars looked sharp all the way out to the edge as you pan around to view the entire field. No trouble with blackouts and I can see the entire 100 AFOV at once, you just have to concentrate on the area within the field of view you want to study. Simply breathtaking! Granted the Ethos are several times more expensive than the Hyperions, so it may not be a fair comparison, but they are worth the price to me. Until you A-B the eyepieces, you just don't realize how sharp the Ethos are. I looked at Jupiter and even at only 75x with the 8 Ethos, I was shocked at how much detail I was seeing. I compared the Ethos to the 8 Hyperion, and when the seeing popped in, the Ethos WAS clearly the winner for contrast and finer detail in the belts and Polar Regions. I wanted to bump up the power, but now it was nearing 2 am, so I had to pack it in for the night, something called work at 7am was coming up in less than 5 hours. Man I can't wait to get out to a dark site to cruise the summer milky way with the Ethoses, or is it Ethoi :-. For an alt/az mount, there simply are no better eyepieces to use, period. What focal lengths will TV come up with next?