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EF70-200mm f/4L USM The ring USM (Ultrasonic Motor) and inner focusing system achieves high-speed silent autofocusing. Manual focusing, even while in AF mode, is possible thanks to full-time manual focusing mechanism. Extenders EF 1.4 X and 2 X can be used with this lens, and the optional Ring Tripod Mount A (W) is being marketed concurrently.

EF1.4x II Extender : What are the parts and controls - nomenclature?

EF 1.4x II Extender : What are the parts and controls - nomenclature?

What lenses are compatible with the EF 1.4x III and EF 2x III extenders?

Please see the following chart for lens compatibility with the EF 1.4x III and EF 2x III extenders .

Lenses that support changes in the AF speed on the EOS C500 Mark II

Lenses that support changes in the AF speed Extender 1.4x EF-S 10-18mm f/4.5-5.6 IS STM EF -S 15-85mm f/3.5-5.6L IS USM EF-S 18-55mm f/3.5-5.6 IS STM EF-S 18-135mm f/3.5-5.6 IS STM EF-S 55-250mm f/4-5.6

Conditions in which Hybrid CMOS AF III operates in combination with Contrast AF (EOS REBEL T6S / EOS 760D)

EF14mm F2.8L USM EF 24mm F 1.4 L USM EF100mm F2.8 Macro *

Compatible Cameras and Lenses for the Function of Correcting Lens Aberration with Digital Photo Professional Ver.3.10

EF 20mm F2.8 USM EF 24mm F 1.4 L USM EF 24mm F1.4L II USM*(3)

Compatible Cameras and Lenses for the Function of Correcting Lens Aberration with Digital Photo Professional Ver.3.11

EF 20mm F2.8 USM EF 24mm F 1.4 L USM EF 24mm F1.4L II USM(*3)

Cameras and Lenses Compatible with the Lens Aberration Correction Function of Digital Photo Professional Ver.4.2.10

EF 200-400mm f/4L IS USM Extender 1.4 ×

EF75-300mm f/4-5.6 III USM Specifications

http://www.canon.com/camera-museum/camera/lens/ ef /data/ ef _75~300_4~56 iii _usm.html

EF 70-200mm f/2.8L IS III USM: MTF Charts

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