As a proud owner of the NEX-7 and the Zeiss 24mm, I can say that I haven't missed IS at all. Most of the time that I am shooting, it wouldn't make a difference, and in low light, I can push the ISO up and the aperture down for really great results. I saw another commenter say something I agreed with. If you think you need IS, get it, but more importantly, just go take pictures. With whatever you have. I often fall prey to gear-envy, but I am realizing more and more that the longer I pine away after the next great camera, the less time I spend shooting with the great camera I already have. Specs have their place, but when they get in the way of the craft, its time to step back and reconfigure our priorities.