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

Started Aug 3, 2021 | Discussions thread
bernie r Contributing Member • Posts: 536
Re: Is RF 28-70 F2.0 suitable for fast moving objects? (AF speed)

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.

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Camera:
Canon EOS R5
Canon RF 15-35 2.8
Canon RF 28-70 2
Canon EF 70-200 2.8
Canon RF 85 1.2
Canon EF 500 f/4 L IS II USM + 1.4X III
Other:
Gitzo Fluid Gimbal Head
Gitzo GT4543LS Systematic Series 4 Carbon eXact Long Tripod
Benro Mach3 TMA38CL Carbon Fibre Tripod
Benro G3 Ball Head
Canon Speedlite EL-1 Flash
Canon Speedlite 470EX-AI Flashgun
Gitzo Adventury 45L

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jnd
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