I have no experience with the 2-7X36 Kahles, but have owned and used a fair number(7) of the 3-9X42 and 3.5-10X AH Kahles scopes.
I really like them, very sturdy, the elevation and windage adjustments are spot-on and the clarity is, to my eyes, excellent.



"For joy of knowing what may not be known we take the golden road to Samarkand."
James Elroy Flecker