I don't recall the model number, but I have a pair of Nikon's, probably 10x50, that I bought about 15 years ago. I agree that you don't want to go too large in the mag, but I really haven't had any issues with them holding them still enough. They were close to $300 back then (although by no means is that "top of the scale"!), but man, the optics are absolutely fantastic. I swear objects are brighter when looking through the binocs than when looking with my naked eye! I think they have a 50 year warranty, but I could be mis-remembering.