Adept optical qualities is certainly one that to the best dive potential in all focal lengths. At f / 4 it is in good to very good, f / 5.6 and one enters the domain of the powerful. you will not see any difference between the center and edges on an APS-C.
I absolutely love his strength even if I managed to paint peeling strength to remove and recover its tripod collar (not supplied).
- AF is fast, very quiet compare to other USM.
- The tracking of moving subjects (the rider in the race car), it remains accurate and'm fine. Little miss, the focus is really constant.
- Optical distortions in architecture they are almost nonexistent. We just do without a DxO Module eyes closed.
- Chromatic aberrations, I have yet to put in default ...
- The stabilization is very good, yarns can be made perfect with speed of 1 / 80sec of racing without worries.
- I think by stabilizing against the noisy, not recommended for naturalists who will like to discrete approaches, it is certainly better to consider his brother in non-IS f / 2.8 for a range of equivalent tariff. I plan to change because of this and also because it is very short 200mm to photograph our animal friends.
For those who want discretion, forget, in the street you will systematically for a picture thief with the common man.
