IV. DISCUSSION OFNEW AND IMPROVED FEATURES 21
Power Source and
Shooting Performance
Live View Function
Exceptfor the number of possible shots (battery life), all the specifications are the same
asthose of the EOS-1D Mark III. Because the EOS-1Ds Mark III has the full-frame CMOS
sensor and full-frame SelfCleaning Sensor Unit, battery life is shorter than that of the
EOS-1D MarkIII by about 20%. At 73°F/23°C, this is approximately1,800 shots maximum,
and at32°F /0°C, approximately 1,400 shots maximum.
As with the EOS-1D MarkIII, an automatic battery check is performed when the main
switch isturned on. Battery level is indicated by one of six levels on the LCD panel.
Currentbattery, remaining capacity (indicated in 6 levels with icon and in 1% increments),
currentshutter count with the battery since the battery recharge, and recharge perform-
ance can be checked. Power turnsoff after the set time (1, 2, 4, 8, 15, or 30 min.) of
non-operation elapses. Even when setto [Off], the LCD monitor will turn off 30 min. after
idle operation, butcamera power does not turn off.
The professionalLive View Function included in the EOS-1D Mark III and EOS 40D is part
ofthe EOS-1Ds Mark III as well. In brief, Live View Function works either on the camera’s
LCD monitor or byremote (with EOS Utility). It makes it possible to place the camera in
positionsfor which it would be difficult or impossible to look in the finder to checkcom-
position and verifyexposure, depth of field or focus. It has grid display and aspect ratio
displayfeatures.
During Live View Function with the EOS-1DsMark III, an icon is now displayed to indicate
exposure simulation (when one pressesthe depth-of-field preview button or set C.Fn IV-
16-1). Other than this, the LiveView Function is the same as that of the EOS-1D Mark III.
The EOS40D enables AF and silent shooting during Live View Function, butthese features
arenotprovided by the EOS-1Ds Mark III because of a difference in shutter design.
DuringLiveView Function, approximately 300 shots can be taken at 73°F/23°Cor 230
shotsat 32°F/0°C. In the EOS Utility Ver.2.2 diskto be bundled with the EOS-1Ds Mark III,
atest-shooting feature and preview feature willbe newly added to the Remote Live View
Function.
In EOSUtility ver.2.1, users could adjust
the white balance in Remote Live View
Function using ambientlight by looking
atthe real-time Live View Function
image on the PCscreen. They could then
store the resultson the camera with a
single mouse click. However, users
could notcheck the real-time Live View
Function image for shotstaken with the
flash, so theyhad to check the finished
shots, adjustthe settings as needed
and retake the shot. The new TestShooting function offers users a simple procedure for
adjusting white balance for flash photography, asfollows:
TestShooting Window