Alberto:
I now am thinking your original post on ranking and the rest is making more sense.
It is very hard for anyone to test all of these fine optics over a period of time
and so this seems to be the case with you.
Many of your rankings follow along with much of what is known. The difference is the EDG has proven to be right at the top. But you have not tested it as much, so have not included it.
Too bad, you made a nice review but did not include all of the latest optics.
Jerry
Hello Jerry.
That isn´t a review, it´s only my opinion, as I said.
About Nikon EDG you´re right, I haven´t tried a 8x42 EDG to can review it. Neither I have never tried any Kowa 8.5x44 XD.
But I have had together a Leica Ultravid 8x42 and Zeiss 7x42 FL and I had tested them almost every day in all light conditions, and stopped them to 32 and 25 mm, for about a month.
I sold Leica and kept Zeiss, only because of the higher CA in Leica.
I have had several alpha binoculars and have compared to others several times for periods of about 30-60 minutes in several stores of my city.
The first times no, but now when I go to a store I know exactly what qualities to set, because I know very well my binoculars´s qualities and aberrations, and I know what I´d like they´d keep and improve.
Of course that is an opinion not a scientific review.
I only knows something, Swarovision has better contrast and CA, and better edge sharpness than Zeiss FL and SLC HD.
It has better ergonomy too. It´s as easier(or even easier) for me hold an SV 8.5x42 as my Zeiss 7x42, despite 8.5x against 7x.
The authentic comparison will be:
-Swarovski Swarovision.
-Swarovski SLC HD.
-Nikon EDG.
-New Zeiss.
-New Leica.
-New alpha porro(if any of these brands build it).
Merry Christmas to all