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Canon EOS R7 performance with EF 300mm f2.8 (1st version)

Started 1 month ago | Discussions thread
Steve Fink Senior Member • Posts: 1,652
Re: Canon EOS R7 performance with EF 300mm f2.8 (1st version)

Tippler wrote:

I am considering purchasing an R7 for use with the EF 300mm f2.8 (1st version) and I am wondering how it will function in terms of focusing speed and frame rate for use in bird and sports photography.

  • What is your experience with the EF 300mm f2.8 (1st version), EF 400 f2.8 (1st version) or similar vintage big white lens? Would such a rig work reasonably well for the stated use?
  • What can be said about focusing accuracy and speed?
  • Will subject detection work?
  • Is the frame rate reduced? Can you compare the frame rate of mechanical vs. electronic shutter?
  • Is focus tracking of birds in flight possible?
  • What is the performance with a 2X extender?

I’d love to find good use for this big ‘ol lens. It still takes great pictures.

Your input would be appreciated.

Thanks,

Tippler

I have the original IS version with the R7.  I haven't done long testing with it, but can say that I like the AF and speed better on my 5D MKIV.

Trying the EF 2x (v1) with the 300mm f2.8 was not great IMO, with AF and speed.

Subject detection and tracking was OK, but my RF 100-400mm and RF 600mm may have been better.

Haven't had an opportunity for BIF with winter cold weather here.

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Steve
Minds are like parachutes, they only work when they are open - Unknown

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