Canon EOS 5D Mark II - EOS 5D Mark II 21.1MP Full Frame CMOS Digital SLR..., Service Manual

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Technical Information
1
1. TECHNICAL INFORMATION
1.1 Image sensor ‒ CMOS sensor
１）Overview
The 35mm, full-frame CMOS sensor (Fig. 001) developed and manufactured by Canon
has enabled the camera to attain the top overall performance in its class. It features high
resolution (approx. 12.8 effective megapixels), wide ISO speed range (ISO 50, 100-1600,
3200), low image noise (same level as the EOS-1Ds Mark II), high-speed signal reading
(for approx. 3 fps continuous shooting), and low power consumption. Table 001 shows the
major specifications.
Table 001 CMOS sensor specifications
Effective pixels (approx.) 12.80 million: 4384 2918
Total pixels (approx.) 13.30 million: 4480 2958
Effective sensor size (mm) 35.8 23.9
Pixel size (µm) 8.2 8.2
Color filter RGB primary color filter
Aspect ratio 3：2
２）Wide ISO speed range and low noise
With the same technologies as the
EOS 20D's CMOS sensor and the larger
pixel size of 8.2 µm square (compared
to EOS 20D's 6.4 µm square) to receive
more light, the camera provides a wide
ISO speed range of 100-1600 (L: 50, H:
3200) while minimizing image noise.
・ The large microlens gathers light
highly efficiently for the photodiode.
・ Optimum photodiode construction for the CMOS sensor.
・ Improved dynamic range with a finer CMOS process and optimized photodiode
construction.
・ Second-generation, on-chip, noise reduction circuit for effectively minimizing random
noise and eliminating fixed-pattern noise.
35.8mm
23
.9
mm
Fig. 001 CMOS sensor (actual size)
Table 002 Pixel Size and ISO Range
Camera Pixel Size ISO Speed
EOS 5D 8.2 8.2µm
50 • 100 - 1600 • 3200 EOS-1Ds Mark II 7.2 7.2µm
EOS-1D Mark II 8.2 8.2µm
EOS 20D 6.4 6.4µm 100 - 1600 • 3200
EOS Kiss Digital N 6.4 6.4µm 100 - 1600