Conclusion: Although our test result of the Kowa 8x42 is good, the overtone of our summary won’t be positive. That Japanese company decided to use a narrow field of view. We can understand their reasons but not without difficulty. If the field is so narrow you should get something else instead.
Pros: solidly made, stylish casing,, low astigmatism,, sensibly corrected coma,, slight light fall-off on the edge of the field of view,, good quality prisms made of BaK-4 glass,, clean and dark inside the tubes.
Cons: narrow field of view,, noticeably truncated exit pupils,, weak distortion correction,, noticeable chromatic aberration on the edge of the field of view.