Canon EOS 20D Instruction Manual page 13

Viewfinder Information
Focusing screen
<A> AE lock/FE lock
AEB in-progress
<D> Flash-ready
Improper FE lock warning
<O> High-speed sync
(FP flash)
<y> Flash exposure
compensation
Shutter speed
FE lock (FEL)
Busy (buSY)
Built-in flash recycling (D buSY)
The actual display will show only the applicable items.
CF card full warning (FuLL CF)
CF card error warning (Err CF)
No CF card warning (no CF)
Aperture
Partial metering circle
AF points
(Superimposed display)
<o> Focus confirmation
light
Max. Burst
White balance correction
Exposure level indicator
Exposure compensation amount
Flash exposure compensation
amount
AEB range
Red-eye reduction lamp-on indicator
Nomenclature
13