Got my R6, disappointed with AF performance on EF Sigma 150-600mm lens for bird photography

Started 3 months ago | Discussions thread
ProDude Senior Member • Posts: 2,203
Re: Got my R6, disappointed with AF performance on EF Sigma 150-600mm lens for bird photography

BirdShooter7 wrote:

quiquae wrote:

jpdodel wrote:

Hi, I checked and there is no firmware update for the 150-600mm except for a teleconverter they sell. I ordered the 60-600mm to see if it makes a difference with a more recent lens. I would get the new Canon RD 100-500mm but really don't want to lose the 100mm on the long end and one stop down in aperture. I really like the Sigma performance.

The RF 100-500's F7.1 is only 1/3 stop below the Sigma's F6.3, not one full stop.

Yes 1/3 stop slower and 100mm shorter

Yes but you can NOT discount the added communication speed which is what the RF's are all about on a R body. Sigma won't match that thus far.

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Name the gear and I've probably owned it and used it.

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Canon EOS R5 Sigma 14-24mm F2.8 DG HSM Art Sigma 105mm F1.4 DG HSM Art Canon RF 24-70mm F2.8L IS USM Canon RF 70-200mm F2.8L IS USM +17 more
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