10.07.2015 Views

Cinematography-Theory-And-Practice

Cinematography-Theory-And-Practice

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Digital Video Encoding 165Is It Broadcast Quality? 166Do It in the Camera or in Post? 166The Decision Matrix 16710 Things to Remember When Shooting HD 167Timecode and Edgecode 168Video Frame Rate 168Drop-Frame and Non-Drop-Frame 16829.97 Video 169How Drop Frame Solves the Problem 170To Drop or Not to Drop? 170Timecode Slating 170Tapeless Production 171Metadata 171Tapeless Workflows 171Digital File Types 172Container Files: Quicktime and MXF 172Compression and Codecs 173Intra-frame versus Interframe Compression 173Bit Depth 173MPEG 174Other Codecs 176The Curve 177Controlling the HD Image 179Gain/ISO 180Gamma 180Black Gamma/Black Stretch 180Knee 180Color Saturation 180Matrix 180Color Balance 180exposure 181Exposure: the Easy Way 182What Do We Want Exposure to Do for Us? 182Controlling Exposure 182The Four Elements of Exposure 183The Bottom Line 185How Film and Video Are Different 185Two Types of Exposure 185Light As Energy 186F/Stops 186Exposure, ISO, and Lighting Relationships 186Inverse Square Law and Cosine Law 187ISO/ASA 187Light and Film 188The Latent Image 189Chemical Processing 189Color Negative 190Film’s Response to Light 190Densitometry 191The Log E Axis 193Brightness Perception 194Contrast 194“Correct” Exposure 197Higher Brightness Range in the Scene 198Determining Exposure 198viii

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