A couple years ago the Tangent Theta/Minox ZP5 had one of the widest FOV's among high end long range scopes, since then a few scopes have come in with wide angle eyepieces that have edged out the TT/ZP5 GSO design, that being said, I am surprised the Kahles DLR with its wide angle eyepiece did not do better because according to the FOV numbers spec'd it should have bested the TT, are you sure the Kahles you looked at was the DLR model?Obviously it’s very hard to know if the markings are correct without any way to calibrate and confirm them but my zcomp 5-27 is as follows:
25x 15.6 mils
27x 14.6 mils
Last time I did this very unscientific test with a 525 dlr, atacr 7-35, tangent 5-25, zcomp 5-27 the atacr won hands down, tangent second, zcomp third and Kahles last.
The way NF has designed most of their ATACR scopes is to limit FOV at low magnification but then to pick it up as you increase magnification, that being said I am surprised to hear the ATACR 7-35 did so well at 25x, do you have the actual mrad values by chance as I would be curious how it compares to the Gen III since the Gen III has wider FOV at 36x than the ATACR does at 35x.
Here are my FOV values from a couple scopes set to 25x during my testing:
- Vortex Razor Gen III 6-36x56 = 16.8 mrad
- Tangent Theta 5-25x56 = 16.8 mrad
- March 4.5-28x52 HM = 18.4 mrad