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Among the EOS-1D Mark IV AF functions, a
new function that stands out is Spot AF.
This function narrows the operation area of
each individual AF point. As focus can be
attained on a smaller area of the image, it can
be effective when used in situations like sports
when aiming at players through a net, or when
attempting to focus on the eyes of a race driver
wearing a helmet. (When using a normal line
sensor, the probability of focusing on a net in
the foreground or on the edge of the helmet is
higher, this will make it possible to focus on the
AI Servo AF
Custom Function C.Fn III-6-7
Spot AF
Notable function
Pinpoint focusing is possible
Spot AF narrows the operating area of the AF sensor
Spot AF can be used by
selecting Custom Function
C.Fn III-6 Lens/Stop Button
Function for setting: 7 Spot
AF. (Illustration is the AF
sensor during AF. Actual
length not displayed.)
* This function can only be used when lenses with an AF stop button are attached.
EF200mm f/2L IS USM 1/1000 sec. f/2.8 ISO3200
