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CMS-XML Lenses that support changes in the AF speed on the EOS C500 Mark II
The AF speed (10 steps) and AF response (7 steps) can be changed. Also, AF speed can be selected to be applied constantly or only when recording. The lenses below will allow the AF speed to be altered from within the camera's menu.
CMS-XML EF17-40mm f/4L USM : How to set the Focus Mode
(Diagram for reference only) To use the autofocus mode, slide the focus mode switch until it is aligned with the AF mark For manual focusing , slide the switch to the M mark and rotate the manual focusing ring
CMS-XML How to mount and dismount the lens.
Be sure to keep the lens' electronic contacts clean to ensure proper connection Be sure to keep the lens surface clean for correct autofocus .
CMS-XML EF16-35mm f/2.8L USM Specifications
Specifications for the EF 16-35mm f/2.8L USM Though the previous model received high praise from professional users, the recent proliferation of digital cameras, which have smaller image sizes than regular 35mm cameras, created a necessity for wide-angle lenses with an even shorter focal length. In response, the new EF16-35mm f/2.8L USM achieves a shortened focal length of 16mm, producing the widest-angle range in its class and allowing users of digital AF SLR cameras to achieve the ultra-wide zoom ranges of conventional cameras.
CMS-XML EF17-40mm f/4L USM Specifications
Specifications for the EF 17-40 f/4L USM The 17 mm focal length achieved by the EF17-40mm f/4L USM lens also extends wide-angle shooting potential when paired with digital AF SLR cameras, such as the high-end amateur-model EOS 10D , which have smaller imaging areas than 35 mm film. Taking into account the smaller angles of view that result, the new lens realizes a focal range equivalent to 27-64mm in the 35mm format (or 1.6 times) when paired with EOS 10D.