What are your thoughts on the results for the Zeiss in their test? Scored pretty bad! But if something wasn't set up correctly as you wonder.....perhaps that skews the results. I'm surprised to see it so low. And frankly, NF so high. My eyes have never really been impressed with NF given their price.
I have no idea if anything was or was not setup properly, I just know with many scopes it is easy to think you've dialed in the diopter appropriately until you actually start shooting with it. Take a look at hk daves review he did a while back -
Tangent Theta TT525P 5-25x56mm vs Minox ZP5 TAC 5-25x56mm vs Nightforce ATACR 7-35x56mm F1 vs Vortex Razor HD Gen II 4.5-27x56mm vs Schmidt Bender PMII 5-26x56mm L/P DT This review and comparison has been a long time coming. It’s essentially the comparison I’ve always wished someone did in an...
www.snipershide.com
My experience mimics his with regard to setting up the diopter - there is a broad range where the reticle looks perfectly in focus to my eyes thus giving me the thought that it is set properly until I shoot it and notice the overall image seems to be a bit "off", after reading his post and talking with ILya more about it I adopted the fine tuning method and began to get better results with what I was seeing through the scope.
My question with the above review is that their results do no match with the results I have seen from tangent vs. zco vs. schmidt. Is ZCO at the top of the heap, absolutely (in my testing); however, tangent has always been slightly better in overall optical performance (this is where the "splitting hairs" comment usually enters the conversation) as long as you're not looking into the sun - if that is a situation you are going to find yourself in frequently then you need to be aware that TT does suffer from quite a bit of flare given the right conditions (this is where a sunshade or ARD will really help).
With regard to Zeiss, I have not seen one as they really don't appeal to me (but appear to be very nice scopes); however, ILya has recently reviewed them and was impressed with their optical performance. He would be a better resource to ask about how Zeiss stacks up, you can also view his review here:
He also has a high end 56mm review here that covers some of the scopes from the Kinetics review:
Understand I am not trying to start an argument here, I realize all our eyes are different and we do have preferences with what we see when we look through an optic. If you bought and used a tangent and an ATACR and felt at the end of the day the ATACR looked better to you, who am I to argue - that was your experience; is it possible you did not have the diopter setup properly, it sure is but again, how would anyone know for sure? All I'm saying is that I've seen a lot of scopes over the years (and made some mistakes too) and I can say with confidence that TT, ZCO and Minox ZP5 tend to stand above the rest when it comes to optical performance, that being said, there are many "cheaper" scopes that perform extremely well and are perfectly capable of getting the job done. The best advise I can give for someone looking to pay $2500 and above for a scope is find a reticle you like (afterall this is something you have to look at every time you look through the scope and use for adjusting for wind and/or elevation), then look for the mechanics that suite you best (turret feel/function), obviously there are a number of other factors like mag range, FOV, eyebox, parallax and so on but choosing a scope based purely on "best optical performance" is going to lead you down a rabbit hole that mostly ends in frustration; whereas, looking for a scope based on other features that fit your intended purpose will yield much better success IMO. As to the question of "make sure the scope tracks proper and is repeatable" that is absolutely crucial, but the reason I did not mention it is that I have not heard any major complaints on any of the above mentioned scopes not tracking properly.
Killswitch Engage used to do video tracking tests years ago that I found interesting, I am not sure why he stopped and why many don't do something similar and feel like the threat of a lawsuit may have shut that down, plus a lot of times we hear about these issues from a sample of one and even the best manufacturers' can have a bum scope that gets out there and of course, the internet being what it is, that is usually the ones we hear the most about.