The Genius of the EOS System
Canon’s Superlative EF & EF-S
Lenses
Like other EOS Digital SLR cameras, the EOS 40D
is compatible with all Canon lenses in the EF
lineup, ranging from ultra-wide angle to super
telephoto lenses, and including Canon’s EF-S
series lenses, manufactured
specifically for APS-C
sized digital sensors.
Canon lenses employ advanced optical expertise
and micron-precision engineering to deliver
unprecedented performance in all facets of the
photographic process. Aspherical, Ultra-low
Dispersion, or Fluorite elements for
example, are featured in the univer-
sally acclaimed L Series lenses, and
Canon’s Optical Image Stabilizer tech-
nology in select lenses minimizes
the effect of camera shake. The
EOS 40D deserves nothing
less than Canon Optics.
Inspired. By Canon.
This image in
Shanghai was one which I saw
as I looked up towards the sky
in the center of my hotel. I loved
the feeling of vertigo and the
suggestion of infinity. I laid
down on the floor and discov-
ered the more extreme angle
which made the photograph
more exciting. I love exploring
and reaching for the maximum
possibility using my Canon.
”
Douglas Kirkland
Lens-Based Image
Stabilization for
Better Results
To combat image blur,
Canon’s Optical Image Stabilizer technology
uses motion sensors and a high-speed micro-
computer built directly into the lens. The sensors
analyze vibrations and apply correction via a
special stabilizing lens group that shifts the
image parallel to the focal plane. The effects can
be seen immediately in the camera’s viewfinder.
The subject remains in sharp focus, camera
shake is minimized or disappears completely,
and sharp pictures are the result. Unlike other
camera companies who have chosen to incor-
porate image stabilization into the camera body,
Canon builds this technology directly into Image
Stabilization lenses so the system is custom
tailored to the optics and focal length of the
particular lens. This optimization renders a far
more effective Image Stabilization system
across the board.
Fast, Easy and
Wireless
The perfect complement to
Canon’s EOS 40D, the new
Wireless File Transfer Unit
WFT-E3A attaches directly to the camera. Sleek,
with an integral antenna, the WFT-E3A does
double duty, functioning both as a WFT unit and
an integrated camera grip with controls for
vertical shooting. The WFT-E3A is speedy, with
802.11b/g wireless compatibility and offers
FTP, PTP and HTTP communication
modes, so it’s ready to transmit,
no matter the shooting situation.
It also offers a newly enhanced
graphic user interface, simplifying
the configuration of both wired
and wireless networks and can
connect to both a GPS unit and or
a hard drive for enhanced function.
More Choices for Photo Composition
The first in its class to offer interchangeable
focusing screens, the EOS 40D can accept
focusing screen Ef-D, which adds grid lines as
well as focusing screen Ef-S that has a super-
precision matte surface perfect for critical focus
when using fast lenses (f/1.8 to f/2.8).
Excellent Flash Photography
Whether using its flush-mounted integral flash
(guide no. of 43 ft./13m at ISO 100), or any of
the flashes in the EX Speedlite line, the EOS 40D
features Canon’s E-TTL II Flash Metering for
reliable flash output through numerous exposures
and configurations. Speedlites like Canon’s
580EX II are perfectly suited to the EOS 40D,
automatically compensating for the camera’s
sensor size, enabling higher output flash, with
more flashes per charge. The 580EX II has an
AF-assist Beam and automatically
sends color tempera-
ture information
to the camera to
maintain consis-
tent, accurate
white balance.
Optical Image Stabilizer OFF
Optical Image Stabilizer ON
©Douglas Kirkland
EOS 40D with
Speedlite 580EX II and
Battery Grip BG-E2N
“
“
EOS 40D with WFT-E3A
16
