The EOS R3 delivers cutting-edge autofocusing performance with wide coverage and precise AF points of up to 1053 zones . When a subject is detected , AF coverage is expanded to function over the entire visible image area ( approx . 100 % x 100 %)* to deliver peak performance when shooting . The AF supports aperture setting as wide as f / 22 . It is also possible to engage AF shooting even when an extender is attached to a supertelephoto lens .
1,053
AF POINTS
100 %
100 %
* Applicable when subject frame is shown while using Subject Tracking and RF lenses ( except RF600mm f / 11 IS STM / RF800mm f / 11 IS STM and Extender RF ), EF lenses ( excluding some current products ), Extender EF ( III ) ( depends on master lens AF area mode ). Some scenes and subjects may not be applicable .