Quantum Data 802BT, 802R CXAR Content Aspect Ratio

262 Appendix A Command Reference

CXAR Content Aspect Ratio

Aspect Ratio Symbol Description Examples

0.750 OT or T90 Television Portrait 3x4, 480x640, 600x800, 768x1024,

960x1280, 1200x1600

0.800 OG or G90 Workstation Graphics

Portrait 4x5, 1024x1280, 1280x1600

1.000 Q Quadrate, "Square” 1x1, 512x512, 1024x1024

1.250 G Workstation Graphics 5x4, 1280x1024, 1600x1280

1.333… T (A)1

1. The letters in parenthesis are the letters that we used to use, before we updated our aspect ratio symbols for compatibiliity

with existing film industry standards (i.e. the symbols defined in SMPTE RP40).

SDTV / Silent Film 4x3, 640x480, 800x600, 1024x76 8,

1280x960, 1600x1200

˜1.37 C (B)1Academy2 “Classic”

with sound

2. In 1932, the shape of film was changed from 1.33:1 to 1.37:1 in order to better accommodate the new optical soundtrack that

was added a few years earlier. This slightly wider shape is the true aspect ratio of “classic” film. The aperture is commonly

referred to as “Academy” and was the shape of the vast majority of U.S. films produced until the 1950s.

˜4x3, 0.825x0.602 SMPTE RP40 35mm "C"

1.444… I IMAX™ 13x9, IMAX™

1.500 V (T)1Vista Vision™ 3x2, 1152x768 Apple Computer

(uncropped) Vista Vision™

1.555… M (V)1Mid 14x9, AFD Shoot and Protect (half-way

between 4x3 and 16x9)

1.600 D 16 Decimal 16x10, 1728x1080, 1280x800, see VESA

CVT 1.0

1.666… E European Film, "1.66 5x3, 1200x720, 1280x768, 1800x1080

1.750 Z Old Fi lm 7x4, Old Metro-Goldwyn-Mayer and Disney

Films

1.777… H HDTV 16x9, 1280x720,1920x1080

˜1.85 A (F)1Film Standard (USA) ˜13x7, 1280x692, 1920x1038, 0.825x0.446

SMPTE RP40 35mm "A"

2.000 U Univisum™ 2x1, 1280x640, 1920x960

˜2.20 F (M)1“Flat”, MPEG "20x9” "˜11x5, 1280x582, 1920x874, 1.912x0.870

SMPTE RP91 70mm

˜2.39 B (C)1Anamorphic Cinema,

“2.35”3

3. Sometimes called “2.35”, which was the aspect ratio before it was changed to 2.39:1 in 1971 to keep splices from showing up

in the projected image.

˜12x5, 1280x536, 1920x804, 1.650x0.690

SMPTE RP40 35mm "B"