EOS Digital for Professionals Brochure

ManualsBrandsCanon ManualsDSLR CamerasEOS-1Ds Mark III SLR Digital Camera

a faster output amp and optimized read circuit,

a continous shooting speed of approximately

5 fps/10 fps is attained.

To minimize the higher power consumption

required by the faster signal reading, the output

amp’s power consumption has been reduced.

Also during long exposures, power to the output

amp is turned off and the standard current

driving the circuit is also cut off to save power.

In addition, during shooting with Live View

Function, the power distribution for the signal-

reading operation is optimized for more pinpoint

power-saving control.

Previously, in front of the sensor, there was an

infrared-absorption glass integrated with a

three-layer low-pass filter. However, for the Self

Cleaning Sensor Unit, the infrared-absorption

glass is now separate from the three-layer,

optical crystal plate. This makes the dust-shak-

ing plate lighter, saving power and making it

easier to control.

The infrared filter has a hybrid construction; it

has an infrared-absorption glass with multiple

coatings to reflect infrared and ultraviolet rays.

It effectively reduces red fringing and color casts

caused by reflections of the sensor surface. A

sophisticated low-pass filter is also utilized,

behind the IR-cut filter, to minimize color artifacts

such as moiré.

Performance: Dazzling

Speed, Superb Precision

Dual “DIGIC III” Image

Processors

DIGIC II, a high-performance

imaging engine that has

been used since the EOS-1D

Mark II in 2004, has been a major feature of

Canon digital cameras because of its very fine

image detail, natural color reproduction and

high-speed signal processing. DIGIC III retains

the DIGIC II’s basic concept and improves upon

it with higher performance and faster speed. To

cope with the voluminous signal processing

required by the EOS-1D Mark III’s 10.1 megapix-

els and top continuous shooting speed of 10

fps, two DIGIC III imaging engines are incorpo-

rated for parallel signal processing. The CMOS

sensor reads out to the Dual “DIGIC III” Image

Processors simultaneously in eight channels.

For the EOS-1Ds Mark III’s 21.1 megapixels,

Dual “DIGIC III” works for ultra-fine detail,

natural color reproduction, and high-speed

image processing.

The extra power of Dual “DIGIC III” Image

Processors has also allowed analog-to-digital

conversion to improve from 12 to 14 bits per

channel, meaning that tonal gradation for RAW

images is now divided into 16,384 separate lev-

els per channel rather than 4,096. When saved

as a 16-bit TIFF image, the image retains the full

range of tones obtained with 14 bits. Also, JPEG

images, at 8 bits per color, are generated from

the 14-bit data. Tonal skipping is thereby

reduced substantially, improving gradation and

overall image quality.

Blazingly Fast Shooting Speed and

Outstanding Burst Rate

At a blazing 10 fps, the 10.1-megapixel Canon

EOS-1D Mark III provides not only incredible

speed when you need it, but also has an amaz-

ing burst rate of 110 JPEG/30 RAW continuous

frames. The EOS-1Ds Mark III provides a contin-

uous shooting speed of 5 fps at its full 21.1-

megapixel resolution. It can also capture up to

56 consecutive full-resolution JPEG images or up

to 12 RAW images in a single continuous burst.

A new shutter assembly, an all-new autofocus

system and new Dual “DIGIC III” Image

Processors contribute to the landmark speed of

the EOS-1Ds and EOS-1D Mark III.

3938

Overview: Entirely New

Professional Cameras

The EOS-1Ds Mark III and EOS-1D Mark III are

the products of a “reset to zero” design process

in which every aspect of Digital SLR (single-lens-

reflex) design and performance was reconsidered.

EOS-1Ds Mark III: A New Full-Frame

Performance Standard

The EOS-1Ds Mark III

incorporates Canon’s

newest CMOS sensor,

which delivers approximately 21.1 effective

megapixels (5616 x 3744 pixels). The recording

area of the sensor is 36.0 x 24.0mm, which is

equivalent to the full-frame size of the 35mm

film format. Compared to typical smaller digital

camera sensors, the Canon full-frame sensor

can accomodate a tremendous pixel count while

maintaining larger individual pixel site size. The

EOS-1Ds Mark III can capture up to 56 consecutive

full-resolution JPEG images or up to 12 RAW

images in a single continuous burst (at 5 fps with

21.1-megapixel files). Larger sites improve light

gathering capability, enabling the sensor to pro-

duce a cleaner, more noise-free image. The Canon

full-frame sensor thus delivers high-resolution

images of exacting precision, with unprecedented

data density for enhanced large-output capabilities

and post-processing cropping flexibility.

Full-frame sensors let photographers use the

entire range of superb Canon EF lenses without

a conversion factor, making it possible to take full

advantage of the specific optical characteristics

for which the lenses were designed. This is an

important benefit for photographers who have a

sizable EF lens collection.

EOS-1D Mark III: Fastest DSLR Ever

At a blazing 10 fps, the

10.1-megapixel Canon

EOS-1Ds Mark III is the

world’s fastest AF digital single lens reflex camera

(as of January 2008). It provides this speed even

at the full 10.1-megapixel resolution. A new

shutter assembly, an all-new autofocus system

and new Dual “DIGIC III” Image Processors

contribute to the landmark speed. Large size

JPEGs at compression level 8 (of 10) can be fired

in barrages of 110 frames (at 10 fps with

10.1-megapixel files). RAW images can be shot

in bursts of 30.

Image Quality

Entirely New CMOS Sensor

The EOS-1Ds Mark III and EOS-1D

Mark III’s new, Canon-designed

and manufactured, CMOS single-

plate sensor advances the state

of the art in professional DSLR sensor design.

The EOS-1Ds Mark III’s full-frame sensor is the

largest sensor that can be imaged in one pass

using cutting edge semiconductor manufacturing

technology. The imaging area of the new CMOS

sensor of EOS-1Ds Mark III measures 36.0 x 24.0mm

(full-frame), and EOS-1D Mark III sensor size is

28.1 x 18.7mm (APS-H), appreciably larger than

22.2 x 14.8mm (APS-C).

Effective Light-gathering

The EOS-1Ds Mark III sensor has 21.1 effective

megapixels, and the EOS-1D Mark III sensor has

10.1 effective megapixels. Individual pixel size

on the 1Ds Mark III’s sensor is 6.4µm, and the

EOS-1D Mark III’s sensor is 7.2µm, the same as

the EOS-1Ds Mark II. Although the pixel size of

the EOS-1D Mark III is 1 micron smaller than the

pixel size of the EOS-1D Mark II and Mark II N,

the photodiode size of both sensors is the

same, thanks to the optimized photodiode con-

struction and more sophisticated processing of

the EOS-1Ds Mark III and EOS-1D Mark III.

By optimizing the gap between the on-chip

microlenses and improving the fill factor (photo-

diode area divided by total pixel size) of each

pixel, light-gathering efficiency has been

improved.

Outstanding ISO Range

Combining the superb image capture capabilities

of the new sensor with advanced Dual “DIGIC III”

Image Processors, the EOS-1D Mark III offers the

widest ISO range to date in a Canon EOS Digital

SLR. The standard range of 100–3200 can be

extended to a remarkable 50–6400.*

More importantly, the low-noise performance at

high ISO settings makes the entire range

usable in real-world shooting situations.

*CIPA standard output sensitivity. Recommended exposure index.

Low Noise, High Speed

A second-generation, on-chip, noise-reduction

circuit is provided. To achieve even less noise,

the EOS-1Ds Mark III and EOS-1D Mark III have a

new feed-through output amp that attains both

high speed and low noise. Low noise is also

achieved with an improved manufacturing

process, an optimized pixel amp and an optimized

reading circuit.

The EOS-1Ds Mark III and EOS-1D Mark III

employ a single-line, 8-channel reading. With

36.0 mm

24.0 mm

EOS-1Ds Mark II

(7.2 x 7.2µm)

EOS-1Ds Mark III

(6.4 x 6.4µm)

EOS-1D Mark III

(7.2 x 7.2µm)

Photo diode

Gap between microlenses

Photo

diode area

Pixel pitch

Circuit area

Pixel Size

Photo diode area

Pixel Size

Microlens Comparison & Opening Ratio

EOS-1D Mark III

EOS-1Ds Mark III

50 100 - 3200 6400

50 100 - 1600 3200

Dichroic mirror

(Reflects infrared rays)

Infrared-absorbing glass

Low-pass filter

(Separates image in vertical direction)

Low-pass filter

(Separates image in horizontal direction)

Phaser layer

(Converts linear polarized light

into circular polarized light)

CMOS sensor

Low-pass Filter Construction

EOS-1Ds Mark III & EOS-1D Mark III TECHNOLOGY

Time

Diagram of 8-chan-

nel Signal Reading

Pixels Size and ISO Speed

EOS-1Ds Mark III

EOS-1D Mark III

7.2 x 7.2

EOS-1D Mark II

8.2 x 8.2

100-1600, L(50), H(3200)

100-3200, L(50), H(6400)

100-1600, L(50), H(3200)

EOS-1Ds Mark II

7.2 x 7.2

6.4 x 6.4

Camera ISO SpeedPixels Size (µm)

EOS-1Ds Mark III Full-frame

CMOS Sensor (Actual Size)