I 12x36 IS binoculars already use a Canon excited my interest in the Canon 18x50 IS AW Binoculars was very high. The 12er is handy and has excellent imaging properties. This suspected and I expected the 18er ... Now the joy lies yet to clear after the first hour dealing was over. The imaging performance and the IS were top, just my nose and eye sockets provided very irritated and with clear pressure points and on top of that a significant effort connected to the part to good use. Plaintext: only with folded-back eyecups ever to recognize a distinct image circle, set to my eye relief I had to press the glass heavily on the nose To benefit from the optics. The eyecups give to little and are a hindrance. Previous speakers have about the problem also reported, edema, I can only add: a clear no go - a clear not buy the argument, not as long as Canon nachbessert tidy. I have therefore returned. In conclusion: the 12x36er puts you and wow, just as it should when 18x50er be ... so the Canon Top performance is yes, however, when it rendered the final (eye cup) it is lacking almost an own goal.