Jerry,
How do your EDG's compare with your SV's when it comes to whiteness rendering? I try to use fresh, clean snow [still lots of it here!] as my reference as poor whiteness is really obvious against such a bright and stark background.
The Conquest [and even the Terra] seem pretty good in this regard until a far better example [HT] is tested side-by-side. Here, the Conquest is clearly creamy and the Terra yellowish.
By all accounts, the SV's are just about perfect in this regard and I would be interested to see if the ''warm'' view of the EDG's translate into less than white - white's. I would also be interested in the Ultravids, as many rave about the ''warm colours'' there too. Is it really a design choice or is it just lower transmission and less than perfect white rendering?
James:
You have a good question about whiteness ratings among binoculars.
And it is one thing I have not spent much time thinking about.
It is important, and there are differences that some may be able to see.
Among the ones you have mentioned I do have the EDG, SV, Conquest
and Terra. I could not tell you how I perceive any whiteness differences, as
they are all very good optically.
Here is how Albinos rates and ranks some of these.
These are the 10x42 models, as that is the EDG model that I own.
These comments are about the whiteness of the image as presented
by Allbinos.
Nikon EDG 10x42. Overall #1, ranking of the models they have tested.
Whiteness of the Image score: 4.5/5.0.
"High transmission values in the wide range spectrum. The curve a bit inclined with the highest value for the red part of the spectrum".
Swarovski 10x42 Swarovision. Overall #2, ranking.
Whiteness of the Image score: 4.8/5.0.
"Excellent, surprisingly high transmission in the blue range of the spectrum".
Zeiss Victory FL, 10x42. Overall #3, ranking.
Whiteness of the Image: 4.3/5.0.
"Very good".
Leica Ultravid 10x42 HD. Overall # 7 ranking.
Whiteness of the image. 4.6/5.0.
"Slight inclination of the transmission curve, with the growing tendancy toward the red part of the spectrum."
The reason I have picked Allbinos for this reference, is they do measure
the transmission spectrum, and most of them are posted with a graph on their reviews.
They comment on "whiteness" and score it.
For most wondering about which binocular to choose, whiteness of the image
is only a small part of the decision. I do agree with the Allbinos overall rankings.
Jerry