Super telephoto photography tips for Canon’s mighty RF 800mm f/11 lens

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Until recently, a super-telephoto 800mm lens fixed at f/11 wouldn’t have been possible. This is because Canon EOS DSLRs simply won’t work with a lens at a minimum f/11 aperture as it can’t let enough light into the AF sensor for the AF to function properly. But thanks to the more advanced AF in the latest Canon EOS R mirrorless cameras, and their EVF (Electronic Viewfinder which brightens your view of scenes you’re shooting) an f/11 fixed aperture lens is possible. So Canon created the unique Canon RF 600mm f/11 IS STM and Canon RF 800mm f/11 IS STM super telephoto prime lenses!