Specifications
Two newly developed front-end ICs have been incorporated to handle the 8-channel, high-
speed signal reading from the approximately 16.1 Megapixel CMOS sensor. The two ICs
work together with the Dual DIGIC 4 Image Processors as a high-speed parallel-processing
circuit to attain approximately 10 fps high-speed continuous shooting.
Features made possible with DIGIC 4 Image Processors:
• Low-noise processing (DIGIC 4 Image Processor + CMOS -> Normal ISO speed range
increased by 2 stops)
• Faster image processing
• Improved noise reduction at high ISO speeds, with no decrease in maximum burst
• Improved Auto Lighting Optimizer
• Lens Peripheral illumination correction
• Face detection AF during Live View shooting (Face detection Live mode)
• Full HD (Full High-Definition) video shooting
• HDMI OUT
• Compatible with UDMA Mode 6 (CF card)
• LCD monitor VGA
• M-RAW
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IV–23. IMAGE PROCESSING AND RECORDING
CF card
SD card
Front-end
Processing
circuit
Front-end
Processing
circuit
DIGIC 4
DDR2
SDRAM
DIGIC 4
DDR2
SDRAM
A/D conversion
A/D conversion
A/D conversion
A/D conversion
Image Processing with Dual “DIGIC 4” (Conceptual Diagram)










