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. For example you can expect the field which is corrected perfectly well till the very edge. Here there is no such thing, though. Quite the opposite in fact.
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.