CANON EF-S 18-135mm f/3.5-5.6 IS USM Lens is attractive on many fronts, including its wide (7.5x) focal length range, its relatively small size and light weight, its fast, smooth and accurate autofocusing, its great functionality including image stabilization and its modest price.
This is Canon’s third iteration of the EF-S 18-135mm image stabilized lens. The first model featured a cost-effective DC motor. The second generation received a stepping motor, producing smooth and very quiet focus acquisition and tracking that was ideal for Movie Servo AF. The latest lens receives Ring USM-driven AF.
Seeing “USM” (Ultrasonic Motor) in the lens name seems very common for those of us using Canon lenses and we usually count on very fast focusing driven by a Ring-USM variant. But, this Ring USM is like no other we’ve seen before. The EF-S 18-135mm USM has Canon’s first Nano-USM AF motor implementation, promising us the silence and smoothness of STM with considerably faster AF drive. Read on to learn more about this feature.
With 2 years warranty.