VIII. ROCK SOLID RELIABILITY
32
Dimensions and Weight
Mechanical Components
The dimensions of the EOS-1D Mark III are (W x H x D): 156 x 156.6 x 79.9 mm/6.1 x 6.2
x 3.1 inches. The weight is 1155 g/40.7 oz. (body only, no battery, no memory cards),
1335 g/47.1 oz. (with battery). Compared to the EOS-1D Mark II
N
, the height is 1 mm
shorter; the body-only weight is a significant 70 g/2.5 oz. lighter, and the weight with
battery is a remarkable 225 g/7.9 oz. lighter. The LP-E4 battery of the EOS-1D Mark III
weighs 180 g/6.3 oz.; the NP-E3
weighs 335 g/11.8 oz.
Because of its lightweight and strength, magnesium alloy is
used for the top, front, and rear covers as well as for the
memory card slot covers. The chassis and mirror
box are also made of magnesium alloy (instead
of the EOS-1D Mark II
N
's aluminum die cast) to
make the body very strong, rigid, and light.
The magnesium alloy also works as an electro-
magnetic shield. Except for its deeper black
color, the paint finish on the exterior covers is
the same as the 1D Mark II
N
's. It is highly
durable, allowing minimal wear even under
harsh conditions.
To equal the legendarily excellent water- and dust-resistant construction of the
EOS-1D Mark II
N
, measures are incorporated at 76 places around the camera controls
and along cover seams. Also, O-rings are used on the memory card slot covers and the
battery compartment, and silicon rubber is employed around the top and rear covers and
buttons where the user can see it and feel reassured. The EOS-1D Mark III's hot shoe is
shaped to resist water with a rib around its perimeter. When the Speedlite 580EX II is
attached, water resistance is maintained. When a water-resistant EF lens is attached to
the camera, the entire camera-and-lens outfit will be water-resistant.
Location of major water-resistant measures
Weight
Image-recording Quality
EOS-1D Mark III
EOS-1D Mark II
N
1,225g/43.2oz.
1,155g/40.7oz.
Body Only
1,560g/55.0oz.
1,335g/47.1oz.
With Battery
