I read the reviews and quite frankly I don't understand alot of the terminology.
What I do know is this: I have always had some type of issue with the different brands, type/styles and sizes of Binoculars I have used. I must state that most of the issues revolved around the fact that I wear glasses.
I also know that I have never been even remotely tempted to spend ULTRA-DOLLARS on the big brand names. Okay so I continued to flounder with optic use and selection for a while longer.
When Charles sent me the first pair of field test Zen-Ray Binos, I was more that pleasantly surprised. I used them for a couple of weeks and reluctantly mailed them off to the next tester on the list. About a week went by and I got two packages in one day. I opened the first one and it was the ZEN-EDs. I took them outside and used them for about five minutes. I never even opened the second box. I called Charles and ordered a new pair of the EDs that very day. I still have them and enjoy using them always. The eye relief with my glasses no longer gives me grief and in my humble opinion I could not ask for anything better at any price.
I am not by any means an expert but I am a convinced user. Best bang for the buck with Zen-Ray.
By the way Charles (ZEN-RAY) has also made several contributions to some good causes that have come up on Hunt-Wa. It is a business that gives back.