do you use the focus limiter on your lenses that have it that you use for sports and ction? it speeds up the focusing because the focus only does half the travel i noticed a big improvement on my two longer sigma zooms good to hear you getting a 90D keep us informed on how it goes Also Kevin, as the 90D has a higher MP sensor you may find this interesting to read on which lenses are better than others in resolving power for the 90D / M6mkII http://www.michaelthemaven.com/?pos...hich-have-enough-resolving-power-which-do-not
yeah I used limiter on my tamron 600 still slow. hope to have the 90d thursday got a race meeting monday to give it a test
