Conclusion: The Leupold Mesa 10x50 is a solid position on the 10x50 class binoculars’ market. The level of its build quality and optics is more or less the same as in the case of very well-known Konica-Minolta Activia and Nikon Action EX. There’s just one Leupold’s problem - the field of view.
Pros: good transmission,, quite solid casing,, very low coma,, slight astigmatism,, negligible brightness loss on the edge of the field,, good correction of chromatic aberration,, good whiteness rendition,, high quality of prisms and coatings,, right blackening inside the binoculars.
Cons: truncated exit pupils,, too narrow field of view,, not stable ocular bridge,, a bit too high distortion.