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IV. DISCUSSION OF NEW AND IMPROVED FEATURES 21
Power Source and
Shooting Performance
Live View Function
Except for the number of possible shots (battery life), all the specifications are the same
as those of the EOS-1D Mark III. Because the EOS-1Ds Mark III has the full-frame CMOS
sensor and full-frame Self Cleaning Sensor Unit, battery life is shorter than that of the
EOS-1D Mark III by about 20%. At 73°F/23°C, this is approximately 1,800 shots maximum,
and at 32°F /0°C, approximately 1,400 shots maximum.
As with the EOS-1D Mark III, an automatic battery check is performed when the main
switch is turned on. Battery level is indicated by one of six levels on the LCD panel.
Current battery, remaining capacity (indicated in 6 levels with icon and in 1% increments),
current shutter count with the battery since the battery recharge, and recharge perform-
ance can be checked. Power turns off after the set time (1, 2, 4, 8, 15, or 30 min.) of
non-operation elapses. Even when set to [Off], the LCD monitor will turn off 30 min. after
idle operation, but camera power does not turn off.
The professional Live View Function included in the EOS-1D Mark III and EOS 40D is part
of the EOS-1Ds Mark III as well. In brief, Live View Function works either on the camera’s
LCD monitor or by remote (with EOS Utility). It makes it possible to place the camera in
positions for which it would be difficult or impossible to look in the finder to check com-
position and verify exposure, depth of field or focus. It has grid display and aspect ratio
display features.
During Live View Function with the EOS-1Ds Mark III, an icon is now displayed to indicate
exposure simulation (when one presses the depth-of-field preview button or set C.Fn IV-
16-1). Other than this, the Live View Function is the same as that of the EOS-1D Mark III.
The EOS 40D enables AF and silent shooting during Live View Function, but these features
are not provided by the EOS-1Ds Mark III because of a difference in shutter design.
During Live View Function, approximately 300 shots can be taken at 73°F/23°C or 230
shots at 32°F/0°C. In the EOS Utility Ver.2.2 disk to be bundled with the EOS-1Ds Mark III,
a test-shooting feature and preview feature will be newly added to the Remote Live View
Function.
In EOS Utility ver.2.1, users could adjust
the white balance in Remote Live View
Function using ambient light by looking
at the real-time Live View Function
image on the PC screen. They could then
store the results on the camera with a
single mouse click. However, users
could not check the real-time Live View
Function image for shots taken with the
flash, so they had to check the finished
shots, adjust the settings as needed
and retake the shot. The new Test Shooting function offers users a simple procedure for
adjusting white balance for flash photography, as follows:
TestShooting Window