Sony Alpha 1, SEL 200-600 or Canon R5, RF 100-500

Started 3 months ago | Discussions thread
MILC man Senior Member • Posts: 4,694
Re: Excellent unbiased comparison video

nandbytes wrote:

paul cool wrote:

you forgot to include the adaptor purchase and all the possible problems this incurs at some point you will want native mount and a 10k rf 500mm if and when.

While I have not tested it myself from what I understand EF lenses adapted work as well as native lenses with no real performance penalty in terms of AF/tracking.

i don't know about tracking, but most of the 1st-gen canon lenses are not supported at even 12fps mechanical shutter on the r5... 400/2.8 is apparently the worst, none of the versions will do 20fps for example:

"Below is the list of lenses with which the speed for continuous shots of max. Approx. 20 frames / sec. is not expected to decrease (as of July 2020).
EF300mm f / 4L IS USM + Extender EF1.4x III
EF300mm f / 4L IS USM + Extender EF2.0x III
EF400mm f / 4 DO IS USM
EF400mm f / 4 DO IS II USM
EF400mm f / 4 DO IS II USM + Extender EF2.0x III
EF400mm f / 5.6L USM
EF400mm f / 5.6L USM + Extender EF1.4x III
EF400mm f / 5.6L USM + Extender EF2.0x III"
https://www.canon.de/support/consumer_products/products/cameras/digital_slr/eos-r5.html?type=faq&search=1&searchurl=/support/consumer_products/content/faq/?itemid=tcm:83-1990619

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