I just acquired some Nikon 10x35 E 11's from ebay, to compare with the 8x30 E 11's and B1.2 10x42 Mavens that I've been using the last several months. I am very happy with both the 8x30's and the Mavens, no issues with either, but the Nikons are so great at what they do, I had to wonder what the 10x35 version would be like. The Mavens, from what I have read, are pretty similar to the Ziess Conquest. The clarity and sharpness are at a high level. The depth of field, perhaps similar to any 10x42 roof prism binocular, is a bit thin. The Nikons are unreal in this regard- it's like you are seeing everything at once. Both are so good at what they do, it's hard to complain about anything. Surprisingly, I prefer the smaller Nikons for casual looks at the night sky- even if the image is not quite as bright. They have such a huge fov, and are so lightweight, that I use them more often than the Mavens for that purpose. Sharpness- wise, it's a toss-up. Both are plenty sharp. So, after receiving the new 10x35 E11's, I was really curious about what they would be like, compared to the 8x30's. Fortunately, they are in like-new condition, and look to be only a few years old, at most. I've had them out a few days now, in several locations, trying to determine what their strengths are. FOV is 7 degrees, a bit more than the Mavens. Looking through both, that seems to be the case. Edge sharpness is similar to the 8x30's, good enough to not be a problem- there in no feeling of looking through a sort of tunnel. The Mavens are sharper at the edges, but especially for porros with that large a fov, the Nikons are fine, at least for me. The 10x35's seem to me to be a bit sharper than either the 8x30's or the Mavens- they are a bit unreal in this respect- very, very sharp. I had some Habicht 10x40's for a while last summer- I wish I still had them to compare to these Nikons. Colors are great- I'm still evaluating them with different birds, but both the reds and the blues really stand out. I got a nice few minutes observing a bluebird, and all the colors were very vibrant. I also spent some time looking at sparrows in a hedge- very detailed, clear view. Depth of field is very good, for 10x binoculars. Not like the 8x30's, but much better than the Mavens. Brightness is good, similar to the 8x30's. The Mavens are brighter, and a bit more vivid. Overall, though, I consider these Nikon 10x35 E 11's to be equally as good as the 8x30's. The combination of things they do well is impressive. However, viewing through the 8x30's might be a bit more comfortable- they excell at that, for sure. The only real issue the 10x35's have, for me, is that there is a bit more chromatic aberration than either of the other two binoculars. I like them so much, though, I'm pretty much ignoring it. Another thing that surprised me was night sky performance. They come pretty close to going as deep as the Mavens. M4 is a globular cluster next to the star Antares- with the 8x30's it was pretty easy to see, but the 10x35's did noticeably better. So- all I can say right now is these are really nice binoculars. I'm glad I took the chance in picking them up.