Canon Eos 1 Instruction Manual

●Focus Lock
When you want to compose a scene with the main subject positioned out
of the zone covered by the five focusing points, follow the procedure
below to first lock the focus on the subject before composing the scene
and taking the picture.
• The focus lock function is available only in One-shot AF mode.(Refer to “2.
Selecting the AF Mode” on page 32.)     
31
Selecting the Five Focusing Points
1Cover the subject with the selected
focusing point and press the shutter
button halfway to focus the...

32
The shutter will not release if the in-focus indicator is blinking. Try \
refocusing the subject
on an alternate subject with higher contrast at approximately the same d\
istance, or use
manual focusing (refer to “3. Difficult Subjects for Autofocus” o\
n page 34).      
2. Selecting the AF Mode 
Two types of autofocus are available: One-shot AF and AI Servo AF.
Select the mode most appropriate for the subject and shooting situation.\
•To use the camera’s AF modes, the lens’ focus mode switch must be...

33
Selecting the AF Mode 
●AI Servo AF
Use this mode when taking pictures of
moving subjects. The lens focuses the
subject continuously while the shutter
button is pressed halfway. AI Servo’s
predictive focus control* can track sub-
jects moving toward or away from the
camera. Exposure is determined
immediately before the shutter is
released.    
In AI Servo AF mode, this function lets
you select the focusing point with the
quick control dial to manually track the
moving subject.       
* Predictive...

34
This camera’s autofocus system is very accurate and can quickly focus\
most subjects with the high-precision Multi-BASIS (Base-Stored Image
Sensor) AF sensor equipped with five focusing points as shown below.
However, the system may have difficulty focusing the subjects listed
below. When autofocus is impossible, the green in-focus indicator will
blink in the viewfinder.    
3. Difficult Subjects for Autofocus
(a)Low contrast subjects (misty scenes,
light-colored or white objects)
(b) Subjects in...

35
Difficult Subjects for Autofocus
have vertical sensors, focus the subject,
then recompose the picture using the
focus lock function.
3) In the case of (f), use the center focusingpoint which has a horizontal sensor,
focus the subject, then recompose the
picture using the focus lock function.
4) Set the lens’ focus mode switch to “ M”
and manually focus the subject.
• See “4. Manual Focusing” on page 36
for manual focusing instructions.    
(d)
00.  Part.2  RS (E)  (P.28~47)   27-01-2003   11:56   Page...

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4. Manual Focusing
Use manual focusing when the subject is difficult to focus with the cam-\
era’s autofocus system, or when you need to control the focus for alt\
erna-
tive focus effects.    
1Set the lens’ focus mode switch to
“M ”.
• The AF mode display is extinguished
in the LCD panel.
2While pressing the shutter button
halfway and looking through the
viewfinder, turn the lens’ manual
focusing ring until the subject
appears sharp. 
•When the focus mode is...

37
5. Selecting the Metering Mode
Three metering modes are available: evaluative metering ( ), partial
metering ( ) and fine spot metering ( ). Center-weighted average
metering as well as spot metering linked to the focusing points can also\
be set with the corresponding custom function. In all metering modes,
pressing the shutter button halfway activates the built-in metering syst\
em
and determines the exposure.
Whether outdoors, indoors, at the sea or in the mountains, there is an i\
nfi-
nite number...

38
Selecting the Metering Mode
●Evaluative Metering ( )
Use this mode for general subjects
and backlit scenes. By dividing the
viewfinder into 16 metering zones
linked with the five focusing points, the
camera evaluates factors such as sub-
ject size, position (based on the focus-
ing point in use), brightness, back-
ground, front lighting and back lighting
to determine the best exposure setting.
In manual focusing mode, evaluative
metering is based on the central focus-
ing point.
•When the subject is...

39
Selecting the Metering Mode
●Fine Spot Metering ( )
This mode limits the metering area to
the center of the viewfinder as defined
by the fine spot metering mark
(approx. 2.3% of the image area). Use
this mode when you need an accurate
exposure reading of a specific subject
area.
• In continuous shooting mode ( ) or
high - speed continuous shooting mode
with the Power Drive Booster E1 (
,), the exposure value deter-
mined for the first frame is also used for
the second and consecutive exposures.
This...

40
6. AE Lock
The EOS-1 Ns evaluative metering system is coupled to the five focusing\
points. It controls the exposure according to the subjects position, ba\
sed
on the focusing point in use.
If you want to determine the exposure independently from the focusing
operation, use AE lock. Use it when you also want to change the compo-
sition of the picture after determining the exposure. AE lock is effecti\
ve for
backlit subjects and other situations where there is extremely strong co\
n-
trast between...