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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:

aut0maticdan wrote:

Tommy S wrote:

I ditched the idea of having RF 70-200 due to its long and cumbersome focus ring.

Curious what this means? Had me take out my 70-200 and try to understand (admittedly haven't MF'd it much to date). The focus ring appears to be of average cumber. I'd call it narrow rather than long. If you mean focus range, it takes around 3/4 of a turn to go from close to infinity focus when set to linear. One advantage it has over the EF is you can set it up for variable sensitivity based on how quickly turn and that has it go from close to infinity in less than half a turn, easily.

It is all about ergo, when I need to hold it for the whole day to track moving objects. I spent 2 days with 100-400 USM II and the focus ring at the end and a pretty long throw is not what I liked. YMMV though.

Shooting with it all day... Purposefully used the heavier EF 70-200 than RF 70-200...

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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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