Imaging recource: Canon zoom teardown: LensRentals takes apart new Canon EF 70-300mm f/4-5.6 IS II lens

    Who doesn't love a good teardown of camera gear? LensRentals has published a teardown of the Canon EF 70-300mm f/4-5.6 IS II lens, complete with many photos and details of its inner workings. An aspect of the new 70-300mm lens which makes it interesting is its Nano USM focusing motor. The Nano Ultrasonic Motor technology debuted in the latest version of the EF-S 18-135mm f/3.5-5.6 IS lens which launched alongside the Canon 80D camera. Nano USM technology is designed to help bridge the gap between still and video autofocusing. The...
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