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 instantly at the desired point.
• When you want to change the focusing point instantly.
The camera automatically detects its vertical or horizontal orientation.\
 When you
switch the cameras orientation, the cameras orientation detection mech\
anism makes
a sound. This is completely normal.
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							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 Procedure
You calibrate the camera by looking at a blinking focusing point in the
viewfinder and then pressing the shutter button. You do this for four
focusing points while holding the camera horizontally and again while
holding the camera vertically. Therefore, you have to follow the calibra\
tion
procedure eight times.
There are three calibration channels (CAL 1, 2, 3) which can store
different calibration data.
For example, you can store calibration data in channel 1 for your naked
eye and channel 2 for when you wear eyeglasses or contact lenses.
Channel 3 can be used to store calibration data for another user.
•Keep your eye on the viewfinder eyepiece until you complete the calibrat\
ion procedure.
• In the same calibration channel, do the calibration procedure for both t\
he horizontal and
vertical camera orientations.
If the calibration procedure is done only for the horizontal camera orie\
ntation, Eye-
Control AF during vertical picture-taking may be inaccurate. You should \
complete
the calibration procedure for both horizontal and vertical camera orient\
ations in a
calibration channel.
1
2
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							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 seconds until the beeper sounds and
the focusing point turns off.
After you release the shutter
button, the next focusing point (2)
will start blinking. Repeat step 4.
Repeat steps 4 and 5 for focusing
points (3) and (4).
3
4
5
(1)
(3)
(2)
(4)
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							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 camera is held vertically with the
grip upward or downward, the focusing
points will still blink in the following order:
top, bottom, right, left.
• For this procedure, use the same
calibration channel No. you used for the
horizontal calibration procedure.
Hold the camera vertically and
press the shutter button.
•Focusing point (5) will start blinking.
Follow the same steps described in
steps 4 to 6 for focusing points (5)
to (8).
Focusing Point Selection
44
6
(5)
(6) (7)
(8)
7
8
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							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 additional eye-related data can accumulate in
the same channel No. for both the horizontal and vertical camera
orientations.
•A  calibration channel must not store calibration data for more than one pe\
rson. Otherwise
Eye-Control precision will be affected. A different user should use a di\
fferent calibration
channel that is available. Or, existing calibration data should be delet\
ed to store new
calibration data. See page 46.
Calibration Tips
• Relax your shoulders and hold the camera steady in a natural posture.
• Align your line of sight with the center of the viewfinder.
• Instead of looking at the blinking focusing point itself, look at the po\
int beyond it.
• If you wear eyeglasses, wear them properly without having them slide dow\
n your
nose.
9
If the calibration is not completed properly, the beeper will sound and \
the LCD panel
display items will blink. In such a case, press the shutter button again\
 and start again
from step 4.
CAL is an abbreviation for calibration.
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							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 simultaneously.
•The CAL No. will start blinking. This
indicates that the calibration data has been
deleted.
Focusing Point Selection
46
1
2
3
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							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 follows:
1 Set the < > switch to < >.
2 Press the < > button.
• and the CAL No. will be displayed.
Eye-Control AF Selection Failure
If the focusing point cannot be eye-selected, the < > icon in the viewfinder will
blink and the camera will switch to automatic focusing point selection. \
See page 38.
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							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 focus the
subject.
Take the picture.
• The initial focusing point you select by eye remains active during \
continuous
focusing in the AI-Servo AF mode. You cannot select another focusing poi\
nt by
eye during continuous focusing (while the shutter button is pressed hal\
fway).
• If a focusing point cannot be selected by eye, the camera switches \
to automatic focusing point selection. See page 38.
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							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 with the One-Shot AF mode whi\
ch
locks the autoexposure setting (AE lock) at the same time focus is ach\
ieved. The
exposure metering is linked to the focusing point.
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							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 and
horizontal lines. The remaining 38 focusing points are
horizontal-line sensitive. Cross sensors (also used as
the center focusing point in the EOS-1 and EOS-1N)
attain higher AF performance and precision. The
sensor’s vertical-line sensitivity is three times higher
than horizontal-line sensitivity.
50
(2) With the following lenses whose maximum aperture is
f/2.8 to f/4, high-precision AF is possible with the
center focusing point which works as a cross sensor.
The remaining 44 focusing points are horizontal-line
sensitive (except with EF 70-200mm f/2.8L USM +
Extender EF 1.4x).
28-80/2.8-4L, 300/4L, 300/4L IS, 500/4L IS,
600/4L, 600/4L IS, 70-200/4L
•With Extender EF 1.4x:
200/2.8L, 200/2.8L II, 300/2.8L, 300/2.8L IS,
400/2.8L, 400/2.8L II, 400/2.8L IS
• With Extender EF 2x:
135/2L, 200/1.8L
(3) With the following lenses, if the maximum aperture is anywhere from f/6.7 to f/8 when an Extender is
attached, the center focusing point will be sensitive to
horizontal lines only. The other focusing points cannot
be used for AF.
•With Extender EF 1.4x:
400/5.6L, 500/4.5L, 100-400/4.5-5.6L IS
• With Extender EF 2x:
300/4L, 300/4L IS, 500/4L IS, 600/4L,
600/4L IS, 70-200/4L
• When the < > button is pressed, the 
display shown on the right appears on 
the LCD panel
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