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Is RF 28-70 F2.0 suitable for fast moving objects? (AF speed)

Started Aug 3, 2021 | Discussions thread
Tommy S
OP Tommy S Contributing Member • Posts: 819
Re: Is RF 28-70 F2.0 suitable for fast moving objects? (AF speed)

bernie r wrote:

Tommy S wrote:

I am tempted to buy this humongous glass, but I read in a thread @Canon EOS R an opinion expressed by an advanced amateur, that 28-70 tends to have some AF speed issues with fast moving objects. As I am not able to test it before purchase I would like to hear from the the real users of RF 28-70 if you have any observations in this regard.

I can guess that moving such a big piece of glass might require some sort of brutal force and the whole system might be slower than RF/EF 24-70.

Yes, it's suitable... But the RF 70-200 2.8 is faster.

I ditched the idea of having RF 70-200 due to its long and cumbersome focus ring. This video convinced me to buy EF 70-200 USM II

For shots like this below I need a shorter zoom, and RF 28-70 F2 is on my wish list, but I do not want to kick myself for slower AF-C, even if great bokah, and low light are main advantages of this humongous glass.

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Canon R6 beat Sony A9II (for now)
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 Tommy S's gear list:Tommy S's gear list
Canon EOS R6 Canon EF 70-200mm F2.8L IS II USM Canon EF 24-70mm F2.8L II USM Samyang AF 14mm F2.8 RF
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