5 stops of IS
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5 stops of IS

This is a stabilized lens, rated at 5 stops of correction on an EOS R. When mounted on an R5 or R6, Canon claims that total stabilization with its I.S.-enabled lenses should improve due to both in-body and lens IS systems receiving information from the others' sensors.

This two-way communication is enabled by the fast protocols developed for the RF mount. Canon quotes as much as an 8 stop benefit with some lenses. Canon claims you can expect 6 EV of correction from the 100-500mm and R5/6 combination, and this is something we'll be sure to test as soon as we can. There are three IS modes to choose from: standard, panning or active during exposure.