Specifications

I. Overview 5
II. Summary of New and Improved Features 8
III. Summary of Differences from EOS-1D Mark III 10
IV. Detailed Discussion 12
1. New 45-Point Autofocus System 13
• New AI S
ervo AF algorithm 14
• Improved AF-related controls 16
• High-precision, cross-type sensors 16
• Low noise AF sensors 16
• Automatic point-of-focus compensation for spectral source variation 16
• AF Point Selection 17
• Enhanced AF Customization 18
• Release/Tracking priority 19
• Spot AF 19
• AF point expansion 20
• Use of Multi-controller 22
• Selectable AF points 22
• Switch to registered AF point 23
• AF-assist beam firing 23
• Orientation linked AF point 23
2. Amazing High ISO Performance 25
3. EOS HD Video Capture 26
• Video recording formats 26
• Video frame rates 27
• Image processing and high ISOs 28
• Audio recording 29
• Focusing 29
• Auto exposure control 30
• Manual exposure control 31
• Apertures, sensor size and depth-of-field 32
• Some video shooting tips 32
• Photographing stills during video shooting 34
• Video playback on the camera’s LCD monitor 35
• Video playback on a connected TV set and saving to a hard disk recorder 35
• Playback, editing and stills extraction on a personal computer 36
• In-Camera Video editing 36
• Capturing video while connected to a TV set 37
4. New CMOS Sensor 39
5. Dual DIGIC 4 Image Processors 41