Canon Eos 3 Owners Manual

Focusing Point Selection
41
About Eye-Control AF
Eye-Control AF enables you to focus at where you look within the area AF\
ellipse in the viewfinder. The camera instantly detects where your eye i\
s
looking and activates the corresponding focusing point (among the 45) \
to
focus.
Eye-Control AF works in both horizontal and vertical camera orientations\
.
Enable Eye-Control AF by setting the < > switch to < >. Eye-Control
AF is especially effective in the following cases:
•When you want to achieve focus...

Set the < > switch to < >.
Set the < > switch to < >.
•CAL and the calibration channel No. will
be displayed. A blinking channel No.
means that no calibration data is stored. If
the channel No. does not blink, it means
that calibration data has been stored in
that channel.
Focusing Point Selection
42
Eye-Control Calibration
Before using Eye-Control AF, you must calibrate the camera to recognize
your eye movements. The camera will then be able to detect where you
are looking in the viewfinder.
Calibration...

Focusing Point Selection
43
Turn the < > dial to select a
blinking channel No.
•If there is no blinking channel No., see
“Deleting Eye-Control Calibration Data” on
page 46.
Hold the camera horizontally. The
calibration sequence corresponds to
the focusing points numbered from (1)
to (4) in the figures.
Keep looking at the blinking
focusing point (1) in the viewfinder,
then press the shutter button.
•The focusing point will stop blinking and
stay lit.
• Keep looking at the lit focusing point for 1
to 2...

After you complete the calibration
procedure, the channel No. stops
blinking and stays lit. “ ” is also
displayed.
•If you take too long during the calibration
procedure and the blinking focusing point
turns off, press the shutter button and start
again from step 4.
After completing the horizontal
calibration procedure, calibrate for the
vertical camera orientation. Hold the
camera vertically. The calibration
sequence corresponds to the focusing
points numbered from (5) to (8) in the
figures.
• When the...

Focusing Point Selection
45
Set the < > switch to < > to end
the calibration procedure.
•The viewfinder display returns to normal.
•Calibration may not be possible if you wear mirror-type sunglasses.
• If Eye-Control AF cannot be used, use automatic or manual focusing point\
selection. See page 38.
Eye-Control Calibration Refinement
Eye-Control precision can be improved by repeating the calibration
procedure under various conditions (outdoors, indoors, at night, etc.)\
 for
the same channel No. The...

Deleting Eye-Control Calibration Data
If you need to replace the calibration data in a calibration channel (f\
or a
different user, eyeglass/contact lens wear, etc.), you must first delet\
e the
existing calibration data by following the procedure below. You can then\
register new calibration data by following the calibration procedure.Set the < > switch to < >.
Turn the < > dial until the CAL
No. whose calibration data is to be
deleted appears (not blinking).
Press the < > button and < >
button...

47
4. Eye-Control One-Shot AF Mode
Set the < > switch to < >.
Turn the < > dial to select a
CAL No.
•The CAL No. lights if calibration has been
completed for that channel. If calibration
has not been completed, the CAL No.
blinks.
Set the < > switch to < >.
Select the shooting mode.
While looking at the point to be
focused within the area AF ellipse,
press the shutter button halfway.
•The selected focusing point lights and
achieves focus.
Take the picture.
1
2
3
4
5
6
You check the current CAL No. as...

5. Eye-Control AI Servo AF Mode
48
1
2
3
4
5
6Set the < > switch to < >.
Turn the < > dial to select a
CAL No.
•If the calibration has been completed, the
CAL No. will be displayed. If there is no
calibration, the CAL No. will blink.
Set the < > switch to < >.
Select the shooting mode.
Look at where you want to focus
within the area AF ellipse, then
press the shutter button halfway.
• The corresponding focusing point, select-
ed by eye, lights and achieves focus. This
focusing point will continue to...

49
6. Focusing an Off-Center Subject
To focus a subject not covered by the area AF ellipse, follow the
procedure below. This technique is called focus lock.
•Focus lock works only in the One-Shot AF mode. See page 35.
Aim the focusing point on the
subject and press the shutter
button halfway to focus.
Keep pressing the shutter button
halfway (this locks the focus) and
recompose the picture as desired.
Press the shutter button completely
to take the picture.1
2
3
Evaluative metering is recommended for use...

The EOS-3’s AF sensitivity in relation to the lens’ maximum apertu\
re is described
below.
●AF Sensitivity and the Lens’ Maximum Aperture
The EOS-3’s focusing points are all sensitive to horizontal lines. Ho\
wever, depending on
the maximum aperture of the lens, certain focusing points can also be se\
nsitive to vertical
lines to enhance AF precision.
(1)With lenses whose maximum aperture is f/2.8 or
larger, the focusing points highlighted in the figure
become cross sensors sensitive to both vertical...