Capability Of F/8 Supported Af Points - Canon EOS-1DX MARK II Settings Manual

Capability of f/8 supported AF points

When using an extender and a maximum
aperture of f/8, all 61 AF points and AF area
selection mode can be fully utilized on most
lenses.
As indicated in the chart on P. 92 "Group F (f/8
supported AF points," with the combination of many
lenses and extenders that total a maximum aperture of
f/8, AF is possible with all AF points. In addition, in this
case the AF area selection modes such as [Auto
selection AF] and [Zone AF] can all be used. Therefore,
it is effective when using a combination of Lens Extender
EF 2x with a lens with a maximum aperture of f/4, or
Lens Extender EF1.4x with a lens with a maximum
aperture of f/5.6. Utilizing an extender is recommended
when you want to do telephoto shooting with your
existing lenses.
Shot with Extender EF 2x III attached to
EF500mm F4L IS II USM.
* Check with Group F, Group I, and Group J on P. 91-93 for
combinations of lenses with f/8 supported AF points and extenders.
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