I'm update to canon 5D MK 2

Superb Imaging Performance
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21.1 megapixel full-frame CMOS sensor for high resolution images of superb quality and details
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New photodiode construction, new microlens array and on-chip noise reduction circuitry on CMOS sensor minimizes interference from electrical noise; keeping image data clean for clearer images even at high ISO settings and long exposures
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DIGIC 4 Imaging Processor’s 14-bit A/D conversion gives rapid processing speeds while maintaining fine detail and accurate colour reproduction
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2 sRAW file format settings gives you the versatility of RAW at a smaller file sizes
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Auto Lighting Optimizer function with 4 settings (Standard, low, strong and disable) - Analyzes the brightness of the photographic subject, and automatically corrects the dark parts to make them brighter
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New Lens Peripheral Illumination Correction setting to automatically even the brightness across the image
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Full HD Video capture at 1920 x 1080 resolution for up to 4GB per clip with HDMI output for HD viewing of stills and video