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Lens

Lens. F-stop f1.4, f2, f2.8, f4, f5.6, f8, f11, f16, f22 How much light the lens lets in Smaller the number, brighter Fast lens/Slow lens. Lens. 2. Focal length 10mm, 50mm, 200mm Measure of magnifying power of a lens Smaller – wider/larger – more telephoto Wide-angle/Telephoto lens

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Lens

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  1. Lens • F-stop • f1.4, f2, f2.8, f4, f5.6, f8, f11, f16, f22 • How much light the lens lets in • Smaller the number, brighter • Fast lens/Slow lens

  2. Lens 2. Focal length • 10mm, 50mm, 200mm • Measure of magnifying power of a lens • Smaller – wider/larger – more telephoto • Wide-angle/Telephoto lens • Zoom lenses can change focal length.

  3. Tripod Basic components • Tripod head • Quick release plate • Tripod legs • Spreader

  4. When you shoot: To-do’s: • Level the tripod • White-balance • Exposure • Focus

  5. White balance Indoor light • Orange • Color temperature of studio light • 3200K (kelvin) • Tungsten balanced Daylight • Blue • Color temperature of exterior production light • 5600K – daylight at noon • Daylight balanced

  6. White-balance How? • Hold a sheet of white paper. • Fill the frame with the white object (at least 85% of the frame).

  7. Exposure To control the brightness of the image • Zebras show overexposed areas. • Some zebras are good (over 80%). In a close-up of a face, you may have zebras on: • Forehead • Cheeks • Nose

  8. Focus • How? • Zoom in all the way, focus, and zoom out.

  9. Depth of Field Area that is in focus Two factors decide the depth of field: • Focal length • More telephoto – shallower depth of field • F-stop • Smaller F-stop number (more light) – shallower depth of field

  10. Rack Focus/Focus Pull • To pull/shift focus from one object to another in the same shot.

  11. Rack Focus/Focus Pull

  12. Rack Focus/Focus Pull • http://www.pinelakefilms.com/XHA1/letusbaseball.wmv • http://www.fotosearch.com/ULF114/u18625331/

  13. Very Important • Before you start shooting the first shot of the day, record color bars at least for 10 seconds. • Before you take the tape out of the camera or before you rewind the tape in the camera, record black for 10 seconds.

  14. Codec Horizontal lines • 480 • 720 • 1080 Scanning • i - Interlaced • p - Progressive Frame rate • 24 • 30 • 60 Common HD format • 1080i/30 • 720p/60 • 24p – for films

  15. DV tape/Tapeless SD Horizontal lines and scanning • 480i Frame rate • 30 (29.97 fps) Format • Full (4x3) • Letterbox (16x9) • Anamorphic squeeze (using 4x3 area for 16x9) Storage • 5 minutes per gig Digitizing • Log and capture (tape) • Log and transfer (tapeless)

  16. Tapeless HD Horizontal lines and scanning • 720p • 1080i Frame rate • 30 • 60 • 24 Format • 16 x 9 Storage • 70 sec per gig Digitizing • Log and transfer

  17. Field of View

  18. Field of View – subject distance ELS (XLS) • Extreme long shot • To establish location LS • Long shot • To establish situation MS • Medium shot • To show/reveal action

  19. Field of View – subject distance CU • Close-up • To show details ECU (XCU) • Extreme close-up • To show more details

  20. Field of View – focal length WS • Wide-angle shot • Extreme WS >> distortion

  21. How much of a person we see • Bust/chest • Waist • Knee • Full • Two-shot • Three-shot • OTS (over the shoulder)

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