Cinematography | Aspect Ratio & Scanning Type

Pixel Aspect Ratio: perbandingan.

  • Square Pixel 1:1
    • SAR = DAR
    • 1080 x 1920 -> 1080 x 1920
  • Non-Square Pixel
    • SAR ≠ DAR
    • 1080 x 1440 -> 1080 x 1920

(Sumber: red.com)

Lensa flat/spherical ≠ anamorphic.

  • Flat/Spherical Aspect Ratio: di crop atas bawah.
  • Anamorphic: expand kanan kiri.
    • Contoh: 4:3 -> 2:35:1.
(Sumber: reduser.net)

Cinema Television Conversion

  • Letterbox
  • Pan-scan

Pan-scan : crop film yang rasionya gamuat/ga sesuai di TV, kalo progressive/interlace salah render (ketuker) nanti hasilnya bergaris.

(Sumber: mediacollege.com)

Image Aspect Ratio

  • 4:3
  • 16:9
  • 1:85:1
  • 2:35:1

(Sumber: rtings.com)

Scanning Type

  • Progressive (p): 1 frame = 1 frame.
  • Interlaced (i): 1 frame = terdiri dari ganjil (1079) & genap (1080).
    • Even field/lower field (1,3,5,…).
    • Odd field/upper field (2,4,6,…).

Contoh:

  • 1080i50 => 1920 x 1080 interlaced, 50 fps-25 fps.
  • 720i60 => 1280 x 720 interlaced, 60 fps – 30 fps.
  • 1080p50 => 1920 x 1080 progressive, 50 fps
  • 720p24 => 1280 x 720 progressive, 24 fps

Both field interlaced: data lebih kecil (TV).

Kalau ingin membuat slow-motion, maka jangan gunakan interlace, karena interlace tidak pernah tunggal. Misalnya, 50 fps berarti terdiri dari 25 frame ganjil dan 25 frame genap.

(Sumber: lifewire.com)

Resolusi: jumlah penyusun pixel horizontal.

Contoh: 7HD = ultra HD = UHD.

  • Resolusi mata: 2,5K.
  • Bisokop: 2K.
  • ·       IMAX: 4K.
(Sumber: display.tv)

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