Formats and aspect ratios

• What are film formats defined by?

  Width of film used in millimeters.
• What are the currently used formats for film?

  Super 8mm, 16mm, 35mm, 65mm
• 8mm?


  Old film format found in archival footage.

  Photograph one side flip over, rethread, photograph the other side.

  Process by splitting in half and splicing together
• Super 16mm?

  The frame and camera gate are wider to create a wider aspect ratio

  Cant be used for film projection with sound
• Super 8mm?

  Plastic cartridge, no cartridge

  Notches in cartridge auto set camera light meter and iso, also contains pressure plate.
• Super 35mm?

  Wider camera gate than academy Uses more image area to reduce grain
• 4 Perf?

  Framed and formatted for 1.37 :1 to 2.40 :1. used when shooting anamorphic to produce 2.40
• 3 Perf?

  Framed and formatted for 1.33 to 2.40

  25% less film then 4 perf
• 2 Perf?

  Framed and formatted for 1.78, 1.85, and 2.40

  Uses 50% less film then 4 perf
• 65/70mm?

  Colour negative

  The original film is 65mm

  15 Perf horizontal (IMAX), 5 and 8 Perf vertical
• Video standards?

  SD (NTSC, PAL, SECAM) analogue and digital

  HD (Analogue 1125/60Hz) (Digital 720P, 1080P/I fps, HZ)
• Analogue recording?

  Composite

  Component
• Digital Recording?

  Composite

  Component

  Over sample rate

  Data transfer rate

  Compression algorithm

  Compression ratio

  Signal transfer method
• Recording media?

  Tape

  Optical disc

  hard drive

  Memory card
• What is an aspect ratio?

  Width to height ratio
• What aspect ratios used for cinema? Spherical lens

  Super 35mm 4 PERF 1.85 :1 and 2.40 :1

  Super 35mm 3 PERF 1.85 :1 and 2.40 :1

  Super 35mm 2 PERF 2.40 :1
• What is the aspect ratio for HDTV?

  4 + 3 PERF 1.78 :1 (16x9) 1.33 :1 (4x3)
• Cinema standard aspect ratio anamorphic lens?

  2.40 :1
• Digital cinema standard?

  1.85 :1

  2.39 :1
• Video standard?

  4:3 (Standard definition)

  16:9 (HDTV)
• some digital cameras have full frame sensors (24 x 36mm)