5 stops of optical stabilization
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5 stops of optical stabilization

The RF 15-35mm F2.8L IS USM is optically stabilized, and Canon quotes an impressive CIPA figure of 5 stops of correction. We understand that in-camera stabilization will be added to the RF lineup in future, and in future cameras, in-camera stabilization will complement the optical system in lenses to provided even more shake correction.

In the current lineup of RF cameras without IBIS, the 15-35's stabilization performance is still boosted through a Dual Sensing I.S. system, something Canon has previously used in its PowerShot G7 X Mark II and EOS M50. While correction still happens inside the lens, the data from the gyro sensors inside the lens is helped out by information from the main imaging sensor. Canon states that this makes it easier to correct for low-frequency shake, and in practice we've found the system to be impressive, easily hand-holding the RF 35mm F1.8 lens for 1-second long exposures.

The RF 15-35mm F2.8L IS USM will be available in late September for $2299.