I just spent an hour and a half comparing Vortex Razor HD, Vortex Viper HD and Zeiss Conquest HD to my Nikon Monarch (all 8x42s). For the most part, I was disappointed in all of them. Unquestionably, to my eyes behind my eyeglasses the Zeiss Conquest HD provided the best image with best brightness, contrast and resolution. Equally unquestionably, my Monarchs are the best handling binocular of the lot; although the Razors were pretty good.
My Monarchs (silver coated pre-DE prisms) are best on sunny, bright days where their excellent contrast and color handling can make up for their so-so brightness. Unfortunately, this morning was heavily overcast here in Portland. Additionally, although there was lots of differing vegetation present both close and far, some hard lines provided by Audubon structures and many cars - there was nothing available to use as a scale for measuring resolution (such as street signs with small lettering) and only various shades of green and brown, plus red tail lights to look at in regard to color fidelity. Accordingly, everything that I saw and herein report should be taken solely as my opinion and with a large grain of salt.
Previously, I have compared my Monarchs to the old Vortex Viper (pre-HD's) 8x42s and found them to be equal optically and superior in handling. The new Viper HD's had a slight edge in brightness and contrast resulting in faster focusing (target acquisition); however, I could not see any advantage in resolution. The overall image quality appears to be very much the same; the Monarchs colors are a bit warmer. The specs on Viper HD's suggest that they are 5.8"x5.3", weigh 24.2 oz, close focus at 5', have 20mm of eye relief and a FOV of 388' a bit wider than the Monarchs at 330'. That all appears to be correct. Viper HD's handle as good as the original Vipers, even though they weigh more. Physically they look and are configured exactly like the old Vipers. If the Nikon Monarch's are an A+ in handling, then the Viper HD's are a solid B. (This is obviously very subjective.) At $590, I would not consider upgrading from my Monarchs (purchase price of $250) - just not enough of an upgrade to justify the cost.
Next, I compared the Zeiss Conquest HD to my Monarch. FIRST THING NOTICED the Conquest HD specs are WRONG.Conquest HD is NOT 6.5"x4.7", weighing 22.7 oz. The Conquest HD that I examined is no more than 6" tall and weighs much more. Perhaps, the weight is a typo and it should read 27.4 oz? Someone at the Audubon store told me that they weighed the Conquest HD and it was one oz greater then the Zeiss Victory 8x42 (26.6 oz). The Zeiss Conquest HD is noticeably much heavier then the Viper or the Razor. The whole reason that I was interested in the Conquest HD was its specified weight - which is very obviously incorrect.
Additionally, The Conquest HD eye relief is spec'd at 18 mm? I wear eyeglasses and I still had to move the eyecups out two notches. This is most unusual for me? However, once the eyecups were in a correct position for me there was no problem with comma, blackouts or shadowing as previously reported by others? It was a very good, clean image with the entire view accessible to me. The Conquest HD offered excellent brightness, contrast and resolution. I preferred the slightly warmer colors of the Monarch, but the Conquests color fidelity was excellent. Not a wow - I've never experienced a wow from a binocular. Optically, this was the best binocular of the group. However, it handled as expected, like a lead balloon. Definitely not a candidate for one hand usage, nor something that I would consider purchasing. Cost is $950. Too bad it weighs so much and is so bulky.
Finally, I compared the brand spanking new Vortex Razor HD to my Monarch. Initially, I was impressed by its light weight and slender barrels. It looks a bit odd with its large focus wheel and its small single bridge hinge. My Monarch weighs 21.5 oz and that is accurate as I've checked it on a postal scale. The new Razor HD does not feel much heavier even though its specified weight is 24.2 oz. The eyepiece is large with the ocular lens being very wide. The eyecups are just large rims around the large eyepiece they do not partially cover the eyepiece frame. This is different than I'm used to, also it appears that the eyecups stick up above the ocular lens by about 4 mm. This caused concern as the eye relief is only 17.5 mm. However, once again I had to raise the eyecups up a notch to effectively use the binocular. Incidently, these are the best eyecups that I've ever used, they really CLICK into position and they are not going anywhere! So very, very much better then the eyecups on my Monarch. I wonder if Vortex is stating the eye relief as effective eye relief measured from the top of the eyecups several mm above the rear face of the ocular lens?
There are other oddities with the Razor HD. This is a three segment binocular. The forward body which includes the single bridge hinge extends forward past the objective lens; the eyepiece assembly including the diopter ring, plus a mid body segment running the full length of the focus wheel and containing the molded-in/machined (?) binocular strap attachment. This mid-body segment is not covered by rubber armor. I assume, perhaps incorrectly, that this is exposed metal (magnesium?). To me the primary purpose of rubber armor is to protect the lens/prism mounting systems. Its secondary purpose is to provide a comfortable/secure gripping surface. It certainly is not to protect the binocular from damage from being dropped at height. Thus I guess leaving this mid segment unarmored is OK? Another oddity is that there are thumb indents on the bottum of the barrels that are too far forward and they are angled wrong - for me. I found that I was gripping the binocular above these thumb indents, thus they are not located where they would be usefull.
With all of these oddities, this is still a very good handling binocular. If my Monarch is an A+, then the Razor is a B+. Unfortunately, their optics appeared to me to be almost exactly like the Vipor HD; although their color fidelity is a bit better. For $1,180 - I expected much more.
So, optically:
1. Zeiss Conquest HD
2. Vortex Razor HD
2. Vortex Viper HD
3. Nikon Monarch (a close third)
In regard to handling:
1. Nikon Monarch
2. Vortex Razor HD
3. Vortex Viper HD
4. Zeiss Conquest HD
I want to see/handle the new Nikon Monarch 7 and the Zen-Ray HD Prime (even though it is heavier than I desire). I would like to upgrade from my 8x42 Monarch but if I'm going to pop for $1,000, then I want light weight and quality optics. The Zeiss Conqest has the optics, but it is too heavy for me.
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