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Using the internal extender on the EF 200-400mm f/4L IS USM Extender 1.4x

Internal Extender Switch When the shutter button is pressed all the way down. When the lens or camera is in operation (during Auto Focus , Image Stabilization*, exposure, continuous shooting, use of the focus preset, power focus operation, etc.).

AF Stop Buttons

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.

Using the AF Stop Button on the EF 400mm f/4 DO IS USM lens

Using the AF Stop Button on the EF 500mm f/4L IS II USM lens

Using the AF Stop Button on the EF 400mm f/4 DO IS II USM lens

How to use the Circular Polarizing Filter PL-C.

Using drop-in polarizing filter PL-C AF photography is possible with the Canon Circular Polarizing Filter PL-C Be sure to correctly insert the filter so that the side marked "FRONT" faces the front of the lens

Using the Image Stabilizer on the EF 400mm f/4 DO IS USM lens

Image Stabilizer You can use the image stabilizer in AF or MF mode.

EF 500mm f/4L IS USM : How to set the focus mode.

Selecting the Focus Mode To use the autofocus mode slide the focus mode switch to " AF ". For manual focusing set the switch to "MF" and rotate the manual focusing ring.