I. CAMERA FEATURESAND OPERATION 19
Action Combo
the main subjectis the closest and most prominent object in the frame and, in
One-Shot, thisis where AFPS works best.
The BonusFeature is that the QCD is now part of your focusing system rather than your
exposure control. The exposure controlsare relocated to the AF Point Selection Button.
Hold the selection button in and turn the Main Dialon top of the camera to adjust
exposure compensation in AEmodes, or f/stops in Manual mode. The disadvantage of
having these exposure featureson the QCD was that it made it very easy to change
exposure settingsaccidentally. Now, it’s just as fast to adjustyour exposure settings,
and you are far lesslikely to change them accidentally.
Thiscombination is most useful for sports and wildlife photographers. Like the Event
Combo, itprovides a great deal of versatility and on-the-fly decision-making abilityfor
photographers, especiallyfor those who shoot rapidly moving subjects in AI Servo AF.
Shooting
Situation
Examples
AFMode
Focus
Activation
button
C.Fn Set
Function
Sports,
Wildlife,
Birds
Single AF
Point–
Football,
Soccer,
Hockey,
Wildlife
AFPS–
Baseball,
birdsin
flight,
wildlife in
the open
AI Servo
RearButton
AE Lock(*)
focus
activation –
and Assist
Button
4-1 or 4-3
17-1
(optional)
18-2
Movesfocus activation from the Shutter
release’shalfway position (SW-1) to the
camera’srear AE Lock button (*).
C.Fn 4-3 isprobablya bit better in rapidly
changing shooting situationslike this
because ittakes the meter reading in
real-time atthe moment of exposure and
can adjustwhen a subject moves from one
lighting condition to another (e.g., a player
running from shade into the sun). Each
image in a sequence ismetered separately.
C.Fn 4-1 willlock the metering for all shots
to the setting used for the firstimage in the
sequence when using continuousdrive. This
isusefulif you’re shooting a sequence in
even lighting where multiple imagesmay be
printed or shown together.
Thisexpands the AF activation area if
needed in lowered contrastsituations.
Activatesthe Assist Button as a focus
activation button using the photographer
registered HP.