Specifications

III. PERFORMANCE 21
T
he power circuit board has the circuit
t
hat generates and supplies the volt-
a
ge required by the camera's circuits.
T
he RoHS directive restricts the use
o
f 6 toxic substances: lead, mercury,
c
admium, hexavalent chromium,
p
olybrominated biphenyl, and poly-
brominated diphenyl ether. It
applies to products sold in the EU
(effective from July 1, 2006). All of
the EOS 40D's parts conform to this
directive.
Fig. 62 Cross section at center
Eyepiece lens 3
Eyepiece lens 1
Eyepiece lens 2
Image sensor
Secondary mirror
LCD monitor
AF sensor
Secondary
image-forming lens
I
nfrared-absorption filter
Focusing
screen
P
entaprism
Metering lens
SI lens
Metering sensor
M
ain mirror
Shutter
Built-in flash
AF mirror
Main board
LCD in the viewfinder
SI reflective
plate
C
ross Section at Center