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Canon EF 100-400mm f/4.5-5.6L IS II USM Lens or other options?

Started Dec 27, 2017 | Discussions thread
BirdShooter7 Veteran Member • Posts: 9,134
Re: Canon EF 100-400mm f/4.5-5.6L IS II USM Lens or other options?

I don't know if the 100-400 II is better with the 1.4x III than the Sigma or not as I haven't done a side by side on a 5d mk3 but I have tried the Canon setup on a 5d mk3 and found that you only get AF with the center AF point and it works ok for static subjects in good lighting but it struggles a lot in less than ideal lighting and I had a hard time tracking action with it.  My guess is that AF performance will be better with the Sigma though I don't think either option would be great for sports photography in lower light conditions.

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