Specifications

III. NEW AND IMPROVED DESIGN FEATURES 14
New P
ower System
U
pgrades
New Multi-controller
White Balance System
intr
oducing the EF-S 10-22mm f/3.5-4.5 USM and EF-S 17-85mm f/4-5.6 IS USM lenses
s
imultaneously with the EOS 20D.
The E
OS 20D can be powered by lithium-ion battery
p
acks BP-511A, BP-511 and BP-512. The BP-511A holds
1390 mAh, r
oughly 25% more than the 1100 mAh of the
511 and 512. The new accessory, Battery Grip BG-E2,
which has an L-shaped grip and vertical camera controls,
will take two BP-511A, BP-511 or BP-512 battery packs,
or six size AA batteries. The AA batteries can be alkaline,
NiMH, or lithium. In North America and Japan, Battery Charger CG-580 will be bundled
with the EOS 20D. Conveniently, its power plug is built into the charger. It can recharge
the lithium-ion battery packs listed above in about 90 minutes.
The date/clock backup battery has been switched to a CR2016, the life of which is
approximately 5 years. It is located in the power system battery chamber.
AC operation is possible with the accessory AC Adapter Kit ACK-E2.
To minimize the increase in power consumption caused by the new, high-speed, 4-channel
reading, the output amp’s power consumption is kept to an absolute minimum. Power
to the output amp is cut off during long exposures and, as with the EOS-1D Mark II, the
circuit-driving standard current is also cut off, resulting in less power consumption and
less noise. As a result, shooting capacity for the EOS 20D is approximately 50% higher
than the EOS 10D.
The new Multi-controller button near the top right corner
of the LCD is a breakthrough in the ease of operation of
digital single lens reflex cameras. The Multi-controller can be
moved in 8 directions: up/down, left/right and diagonally.
It
can be used for AF point selection, scrolling during
enlarged playback, positioning of the trimming frame for
direct printing, and setting white balance compensation.
The auto white balance has been improved from that of
the EOS 10D and the EOS Digital Rebel to make color
reproduction more accurate and natural. Moreover, with
DIGIC II and an improved algorithm, the white balance is
now more stable, especially at high ISO settings. Also,
color reproduction (natural reds) under low color
temperatures such as tungsten has been improved along with skin tone accuracy.
Multi-controller
B
attery Pack
BP-511A
B
attery Pack
BP-512