I couldn't resist buying this. The Kern Pizar 8x30 porro. Rated in the top 6 8x30 porro's ever made by Brin Best, Bryn has it on level par with the Zeiss Oberkochen 8x30B and slightly below the Nikon E11, both of which I have. In comparison, that would seem about right, my Nikon E11 would have to be rated slightly better, mainly due to the superb colours and super wide FOV, however the Kern easily matches it for clarity and brightness. Optically, there is not much in it with the Oberkochen, the Kern has the narrowest FOV, AT 140M@1000M, and falls away a fraction right at the very edge. Eye relief on the Kern is a tad skinny. The Kern has excellent resolution and brightness, a tad brighter than the Oberkochen, actually the Kern must be close to the brightest vintage porro I have ever looked through. Personally I just give the Oberkochen the edge, due to it's more compact ergonomics and the superb Zeiss West build quality. That does not mean the Kern is poorly built, it is superbly built, beautifully finished with smooth focus, but the Zeiss edges it. These Kern Pizar 8x30s are very hard to find now especially in this condition, not that many were made and I probably paid a bit over the top at just over £300, but I dont think I would find another in this condition, virtually as new, glass and coatings all perfect, clean inside, lanyard as new, case as new all in the original box pretty much as it would have come out of the shop back in the late 70s or early 80s. So, all considered, very pleased with it.