Let me be honest, I have not read every one of the 114 pages on this thread but here is my take.
I have recently retired and promised myself a really good set of binos. They had to be 10X because they are what I am used to and I am lucky enough to have rock steady hands. The usage will be 50% bird watching and then predominantly country views (I am a keen long distance walker). I do not know much technically about binos but I am a hugely experienced user having had my first set when I was 10 or 11 and since then 12 or so pairs; Minolta, Nikon, Opticron, Chinon amongst others.
I did a great deal of Internet research and set off to try various pairs at Lakeside Optics on Chew Valley Lake just south of Bristol, UK. LO gives you the opportunity to compare various binos against each other outside looking out over a lake, with lots of birds, at distant hills and into a neighbouring wood. LO does not hassle you and gives excellent advice and only when you ask for it. I think that they are brilliant, having never even heard of them before.
I had decided to compare the Leica Ultravid Plus, the Swarovski El and the Zeiss Victory SF. To be honest I thought that I would walk away with a pair of SF. In any case, I quickly ruled out the Leica because I just did not like the focusing. I preferred the SF to the EL 10X42 because of the greater lightness and faster focusing. Optically I felt that it was a better pair of binoculars to use. The improved ergonomics counted for very little with me. Quite honestly I have never found any halfway decent pair of binos uncomfortable to use and the way that I hold binos causes me no problem with the focusing nearer to the eye lens. A big gconcern was that I just did not think that the SF was as well built as the SV EL. By way of comparison, I also tried a set of Nikons but they were just not in the same league. I also tried the EL 10X32 but it was not as good as the 10X42.
Finally, very much as a long shot, I tried the EL 10X50 and they literally blew my breath away. So clear, so bright, such superb colours and this applied looking into the darkness of the wood and across the lake. What astonished me was that,when looking at birds in bright light, for example on the wing or on a lake on a bright day, how much clearer their colours were.
This whole process took about 90 minutes and I then left to think things over for 3 days and then spent another hour principally comparing the SF 10X42 against the EL 10X50. I left having paid for the EL. However, there was still a niggling doubt and so I took the EL 10X50 back to compare yet again against the SF. After another hour, I left totally satisfied that I had made the right decision.
What would have happened if Zeiss made an SF 10X50? I frankly do not know. If I had not come across the EL 10X50, thanks to this forum, and so it was the EL 10X42 versus the SF 10X42, what then? In all honesty, it would have been a really tough decision. My preference for the optical performance of the SF against the better build of the EL. Bear in mind that I want these binos to last me the rest of my life. It would have been very close but possibly just the SF. However, in my opinion, the EL 10X50 is in another league. I have used them a huge amount now over tha last 4 weeks and I remain totally delighted with them.
My thoughts for what they are worth.
Rolstone