Currently using the Canon 60D, and maybe down the road (maybe a year or two) will go for a full frame body. I am sure many of you faced the same dilemma. While I'd love the f2.8L IS I or II of this lens, the budget is keeping me from going for it.
Was scouring the flickr pages, forums for photos taken with the f2.8L (non-IS) and f4L IS. Since I have no experience with this lens (considering its weight and size) I was wondering how difficult it is to keep the f2.8L (non-IS) steady while framing your shot. I am asking this because a friend of mine bought the f2.8L (non-IS) but returned it because it was difficult (at least for him) to get a good shot and freeze his subject (unless with high shutter speed). I know this various from person to person, as some of us may have steady hands than others. Any experiences shared here would be really helpful.
Also, I was wondering given the f4L lens with it's biggest aperture of f4; how is it's bokey quality in comparison to the bokeh rendered by the f2.8L at f2.8.
I am guessing the f4L IS is sharper. Correct me if I am wrong.