I don't have any issues with sharpness at 2.8 but I could surely use IS for low light on this zoom range. Now I'm forced to use my 70-200 most of the time in that kind of situations...If that's it, and it doesn't come with IS at that price, I'm very happy that I just bought the current version
in my opinion, the current version leaves a lot to desire. In particular weak 2.8 sharpness and mediocre mid contrast killed it for me (had one, sold it). If they fix it and we see a similar improvement as the 70-200 did, I'm happy
Glad they didn't incorporate IS, for me at least. I like it on longer lenses, but I don't think I would use it a lot on this lens, and I'd still pay for it - in hard currency upon purchasing, and after a long day of shooting, in neck and shoulders since it all just adds up to the weight
Agreed. Despite the steep price, i'd certainly pay that much to actually have great 2.8 and improved image quality across the frame (and hopefully without the field curvature). if they can improve IQ similar to the 70-200mm II, i won't ever need another canon lens. Perhaps i just 3 bad versions over the years but i won't buy another normal focal length zoom until they step up their IQ.
Also, I find it a bit disturbing that they moved the mounting of the lens hood to the front which moves with the lens while zooming....the current version is fixed, so I predict worse weather sealing after some time of use...