Canon EOS 1Ds User Manual

Page 20

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IV. DISCUSSION OF NEW AND IMPROVED FEATURES

20

The dimensions (W x H x D) of the EOS-1Ds Mark III are: 156 x 159.6 x 79.9mm/6.1 x

6.3 x 3.1 in. It is 3mm taller than the EOS-1D Mark III. The body-only weight is approxi-

mately 42.7 oz./ 1,210g, approximately 1.9 oz./55g heavier than the EOS-1D Mark III

but 0.18 oz./5g less than a body-only EOS-1Ds Mark II. The difference in this case

becomes more pronounced when the respective batteries are added in: 48.9 oz./1,385g

for the EOS-1Ds Mark II vs. 54.9 oz./

1,555g for the Mark II, a difference of

approximately 6 oz./170g.

Water- and dust-resistant construction is

the same as the tight and thorough seal-

ing of the EOS-1D Mark III.

Except for the 35mm full-frame CMOS sen-

sor, large glass pentaprism, and full-frame

Self Cleaning Sensor Unit, the internal com-

ponents (including the shutter and the

shutter-release mechanism) are the same

as those of the EOS-1D Mark III.

The basic electronic components are the

same as those of the EOS-1D Mark III.

However, certain boards have been optimized

for the 35mm full-frame CMOS sensor. For

example, due to the larger circuit, the Self

Cleaning Sensor Unit board has been split into two boards.

All parts comply with the RoHS (Restriction of the Use of Certain Hazardous Substances

in Electrical and Electronic Equipment) Directive.

If there is a small noise when the camera is shaken, it is the sound of the ball bearings in

the camera orientation detection unit.

Location of Major Water-resistant Measures

* The shutter unit is counted as 1 part.
* The DC/DC converter is counted as 1 part.
* The E-ring is counted as a washer.
* The official total excludes the screws and washers.

Item

1Ds Mk II

1Ds Mk III

Optics

Mechanical parts

Electrical parts

Circuit boards

Lead wires

Total (Official)

Screws and washers

Total

35

674

1557

41

162

2323

349

2672

30

628

1479

43

22

2202

311

2513

T

Parts Count

SI lens 2

Eyepiece lens 4

Eyepiece lens 3

Eyepiece lens 1

Eyepiece lens 2

H-LCD

H-LCD prism

Image sensor

Low-pass filter

Secondary mirror

LCD monitor

AF sensor

Rear LCD panel

Lithium-ion battery

Secondary

image-forming lens

Infrared-absorption

filter

Fixed aperture

Fully-reflective

mirror

45 main reflex

mirror

Focusing

screen

Laser Matte

surface

Condenser lens

Pentaprism

Metering lens

SI lens 1

Metering sensor

SI mirror

SI prism 1

SI prism 2

Cross Section at Center

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