Canon EOS 1V, Service Manual, Page: 9 / 240

EOS-1V’s New AF Features (For details, see “4. Nomenclature”.)
Focusing Point Registration and Shifting (HP: Home
position)
This feature was suggested by many pro users of
the EOS-3. It enables the user to register the most
often-used focusing point and shift the focusing to
this registered one. Among the 45 focusing
points, only one focusing point can be registered.
Or, the camera can be set for automatic focusing
point selection with the 45 focusing points (the
automatic selection of 2 focusing points can also
be registered). Using a registered focusing point
gives priority to composition, while automatic
selection of 45 focusing points results in shutter
release priority. The focusing point can thereby be
registered to suit the objective.
The focusing point is shifted mainly with the new
Assist button provided for this purpose. When CF-
18-1/2 is set, pressing the Assist button alone can shift the focusing point instant-
ly.
New focusing point selection method (CF-13-3)
In addition to limiting the selectable focusing
points to 11 (with CF-13-1/2), a new Custom
Function setting (CF-13-3) can also limit it to 9.
Turning the Main Dial selects one of the three
horizontal focusing points at the center or sets the
automatic selection of 45 focusing points.
Meanwhile, turning the Quick Control Dial selects
one of the 8 peripheral focusing points. Thus, the
user can quickly select the often-used center
focusing point, a peripheral focusing point, or the
45 focusing points to achieve focus.
Also, the new CF-18-1/2 settings enable the
Assist button alone to instantly select the center
focusing point, and the Quick Control Dial and
Assist button can be used to select one of the 9 focusing points.
Limiting the selectable focusing points (CF-13-1/2/3)
and expanding the focusing point range (CF-17-1/2)
By limiting the selectable focusing points to 11
(CF-13-1/2) or 9 (CF-13-3) and expanding the
focusing point range (CF-17-1/2), all 45 focusing
points can be used to cover the subject.* This
combination enables both quick focusing point
selection and quick subject capture.
* With CF-13-3 and CF-17-1, 37 focusing points
will be usable. With CF-17-2, the focusing
point coverage varies depending on the lens
focal length and AF mode.
1-7
Part 1: General Information
Shifting to the registered focusing point (normal)
Shift with Assist Focusing point selector.
Focusing point registration
Focusing
point selection
Register with Assist button
+ FEL button.
The focusing points shown
on the left can also be registered.
+FEL
Press and turn to switch between horizontal
focusing point shifting and automatic focusing point selection.
Press and turn.
Automatic selection
Manual selection of horizontal
focusing points
Automatic selection
Selectable peripheral
focusing points
Selectable focusing points
9 selectable focusing points
Fig. 1-6 Focusing point registration and
shifting.
Fig. 1-7 Focusing point selection method
with CF-13-3.
Selected focusing point.
Focusing point range
expanded with CF-17-1.
Focusing point range
expanded with CF-17-2. +
* During One Shot AF, the selected focusing point and the
focusing point achieving focus light up.
Fig. 1-8 CF-13 and focusing point
expansion. (With CF-13-3)