Canon EOS 70 Instruction Manual page 37

Basic Operation
o
Making Selections with the Quick Control Dial
Before using the
<
0
> dial, set the Quick Control Dial switch to
<
(>.
::,8:- LCD Panel Illumination
I
Turn on (
06
)/off the LCD panel
illumination by pressing the
<
;t>:-
>
button.
During a bulb exposure, pressing the
shutter button completely will turn off the
LCD panel illumination.
37