07-14-2017, 08:11 AM
The 100-400 was a big surprise to me, but I don't know what I would say if I had high expectations to it. I just "played around" as it appeared under my radar. With any APS-C camera, that would be the choice for me.
As for the contemporary. I recall about 2 firmware udates for the Sports version which increased AF speed and accuracy to some extent, also the MC-11 got updates. Are your products up to date? The MC-11 just got an update very recently, see: https://www.sigma-global.com/en/download.../firmware/
As for the contemporary. I recall about 2 firmware udates for the Sports version which increased AF speed and accuracy to some extent, also the MC-11 got updates. Are your products up to date? The MC-11 just got an update very recently, see: https://www.sigma-global.com/en/download.../firmware/