Teach Your Camera New Tricks; Using Menus - Canon Camera Hackers Manual

4 Teach Your Camera New Tricks

We have already mentioned the
<ALT> mode (or CHDK mode) where all CHDK menus and scripts are acces-
sible. Note that while in <ALT> mode, none of the keys (including the shut-
ter release) work in the traditional way. To return to normal operation, you
must leave <ALT> mode. This is done with another click on the
<ALT> mode is indicated by a small <ALT> sign at the bottom of the display
(blue in Recording Mode and white in Playback Mode).
Now, where is this mysterious key? There is no key on your camera la-
beled ALT. In fact, the actual key acting as the
camera:
A series and SD series: the
f
is sufficient; a long press will either have no effect or invoke a native
camera function.
G series and S series: the
f
the ALT function can be assigned to the Shortcut, Flash, Timer, ISO, or
Video buttons.
4.1

Using menus

Invoking the CHDK menu is almost as simple as invoking the native menu.
Switch to the <ALT> mode by pressing the
MENU button. You can exit the menu by pressing the
or by pressing the ALT
to normal mode.
Some menus are too large to be displayed on the screen. In this case, the
menu shows a scroll bar at the right-hand side. Use the
buttons to scroll to the desired position.
Menu items are either parameters or submenus. A right arrow identi-
fies submenus. To open a submenu, press the
from a submenu to the higher menu level, navigate to the last item on the
screen which should be named Back. Press
natively, you can press the
Pressing the LEFT, RIGHT, or
other menu entries. The change immediately becomes active—an extra
ALT key. Use it to switch the camera into
Print button is used. A short press (like a click)
Shortcut button is used by default. Actually,
ALT
button, which will also leave <ALT> mode and return
FUNC/SET
DISP button to return to the parent menu.
FUNC/SET buttons changes values in the
ALT
ALT key varies from camera to
button, and then press the
MENU button again
UP and
FUNC/SET button. To return
on that item. Alter-
4.1 Using menus
key.
DOWN
Figure 4-1
The Extra Photo Operations submenu.
The scroll bar on the right-hand side
indicates that the menu is scrolled
down to the bottom. The last entry, the
Back entry, leads back to the main
menu. This submenu has two child
submenus: Bracketing in Continuous
Mode and Custom Auto ISO.
17