Riddy831 wrote in post #11096100
I guess I must just wait for one to pop up and hopefully be one of the first to spot it.
Wombat did you find the f4 to be a very shape lens like ive heard it is? And this lens would also be appropriate to use for baseball too? Also did you ever use it with a 1.4x TC? and if you did what were your thoughts on that combo together?
Back when I had it I only had a 20D (not something with the world's greatest focusing so these results may or may not be valid for 1 series/5 series/7 series) but putting on the TC did reduce the sports AF quite a bit. It definitely got slower and clearly less precise (although it's possible had micro focus been avail back then that that would've fixed it???).
I would say it seemed, bare lens at f/4, to be a litte bit better than the bare sigma 120-300 2.8 gives at 2.8 and similar to the 300 2.8 IS + 1.4x TC wide open at f/4. Worse than the bare 300 2.8 IS at f/2.8. It has better contrast and sharpness than the 70-300 IS or tamron 70-300 VC at 300mm and better sharpness and slightly, slightly better contrast than the old 100-300L (much better AF than that).
I thought (bare) that the AF was worse than the 300 2.8 IS but better than the sigma 120-300.
It is pretty prone to purple fringing-type CA.
Yeah it's fine for baseball too. A bit short for the outfield and a bit tight at first, but it works.
Here are a few shots (downscaled for web, jpgs out of a 20D):
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