The autofocus speed seems a bit slow, but to be fair about it, I am using a 60D and every EF lens I own focuses faster on my friends 5D2 than my 60D...A 600mm f/5.6 prime has to have good IQ. It doesn't necessarily need to be as good as the 600/4, but it has to be better than the alternatives. For such a large objective element, that is no easy task...We are definitely in agreement...
For a 600 F5.6 prime to sell, it has to be better than the alternatives.....
At twice the price, it has to be significantly better than the Tamron... But I doubt they can hit that combination of quality and price... As mentioned above, nobody thought they could hit the quality/price on the 150-600 and they proved us wrong...I am more than willing to be proved wrong again, but I'll believe it when I see it.
Shot this with the Tamron today at 600mm. Pixel peeping on an obsolete crop body To significantly beat this at a reasonable price will certainly be a challenge.
Thanks for sharing Don Haines
How is the AF speed @ 600mm?
It's a $1000ish lens(@ fraction when compared to Canon 600mm II). If IQ and AF speed is good enough for everyday shooter, I think this might be a winner for many(including myself)
I just ordered the Canon 1.4TC III. Can't wait to it on my Canon 400mm f2.8 IS II.