Canon Lens Rumors

How Fast is Nano USM Compared to STM?

In case you missed it, the above video shows the autofocus speed difference between the Nano USM version of the EF-S 18-135mm f/3.5-5.6 IS and the STM version. The difference in this controlled test by Canon is definitely quite obvious.

What will be the first EF lens with Nano USM technology? I think we may find out at NAB in April.

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