Mount conversion

Dark slide wrote:

Yes. But I have only recently become aware other manufacturers have made advances in focussing in terms of accuracy and speed that adapting telephoto lenses is useful. The phrase was ability to focus rapidly on a distant eye (!), currently beyond Sigma's wildest dreams.

So are you hoping to switch your SA-mount lenses to Canon EF mount? If so, I suggest just selling your Sigma SA-mount lenses and buying the same lenses in Canon mount versions . . . or maybe just buying native Sony E mount, if it's a Sony E mount camera you're considering.

I'm actually considering getting a few Canon mount lenses to use on both a Sony A7r IV and a Sigma L mount camera in the future, because I know there is a mount adapter for using Canon lenses on the Fuji GFX100S, which I am also considering. I have plenty of Sigma SA-mount lenses now though, so I'm just going to wait until I have the Sony or a Sigma fp-L, before I go buying any Canon mount lenses. Oh, and there's one more reason I am considering Canon mount lenses - a lot of high-end video cameras have Canon lens mount availability.

Having Canon mount lenses in that case would allow me to use cameras from multiple brands, such as Sigma, Sony, Canon, Blackmagic Design, Red, Panasonic, and Leica. I could even use a Nikon Z mount camera, because there are adapters to use Sony E mount lenses on a Nikon Z mount camera. I could just use my SA-mount to Sony E mount adapter, and put thav on the adapter to mount Sony E mount lenses onto the Nikon Z7 II or something newer and better that might come along. Ultimately this may end up becoming my solution, because I have Nikon lenses too, which I could use on any Nikon Z mount camera, using Nikon's adapter.

It's an amazing world we live in these days, now that there are SO many adapters, allowing photographers to mount almost any lens on so many new camera bodies.