I´m a big fan of Canon IS 12x36, and find them excellent for distant viewing and panning, great for tracking flying seabirds, raptors etc. Recently someone gave me a present of the 8x25 IS version, and I´m astounded by how lousy they are. (It may be that these are a duff pair, but as they were a gift, I don´t want to ask for a receipt to send them back!). Although they are passably good for viewing static objects, sometimes they go way out of focus when the IS button is pressed. And always, when panning or trying to follow a flying bird, they go insanely out of focus. When panning, the image lags well behind reality, displaying much fringing, and when you stop panning, the image judders past and then shudders back before settling down, again well out of focus. Are there any 8x25 IS users out there who can advise me on this one? And has anyone any experience of Canon´s customer/repairs service (´cos I can´t believe these are a standard pair). Thanks in advance.