Canon 30D - Manual (Page 12)

Page 12 of 35 © Ken Rockwell 2006
INFO: In playback, this button cycles through three kinds of display:
1.) Just the image, or
2.) Image with file number, frame counts and f/stop and shutter speed, or
3.) A page of more data and a useless single-channel histogram. You'll get
much better results with the RGB histogram you should select in the Playback
Menu.
If the LCD is off, you're in shooting mode and pressing INFO calls up a screen
of data related to the pictures you're about to take. It calls up the current time
and date, exposure compensation, WB and Picture Style settings, available
memory and etc.
JUMP : If you have the menus up, JUMP jumps to the next of three color-
coded kinds of menu items: Shooting, Playing and Wrench.
If you're playing an image, press it and you'll see a scroll bar appear on the
image. Now the big rear wheel jumps 10 images forward or back per click.
[ > ] (Play) : Plays images. Press again to turn them off.
Trash : Delete image. To delete an image, press the trash button, spin the dial
one click clockwise to highlight "Erase" and press SET.
ON / OFF: Power switch. The top "/" position enables the big dial to set
exposure compensation, which makes images darker or lighter. Note how the
"/" line connects to the big dial.
In "ON" the big dial still works in the menus and everything else, but it won't
set exposure compensation. You may wish to use the "ON" position to
prevent accidental changing of the lighten/darken value. This value is shown
on the top LCD and in the finder as a bar under a dotted line.
In the photo of the top LCD above you can see this line on the bottom center
of the LCD. In the photo the bar is at -1/3, my usual preference for the 30D.
Big Dial: Spin this to select items as shown on the two LCDs and explained
throughout this article.
SET: This is the button in the center of the big dial. It rotates with the dial. I
had to be sure I had it rotated so it said "SET" and wasn't upside down ("13S")
for the photo. Don't worry, it does the same thing all the time.
Red light on bottom right of Big Dial: This lights when the memory card is
working. Leave the memory card alone while it's lit. It only lights for short
periods of time when taking pictures, or stays lit and flashing when
downloading a lot of photos.