common aspect ratios at DVinfo.net

BJ Heinley · February 25th, 2003, 05:15 PM

...
What are some common aspect ratios for DV and film? I know about 640x480 but don't really know any others.

Casey Visco · February 27th, 2003, 12:03 AM

NTSC DV is typically 720x486

Aspect Ratios (the ratio of width to height of the screen) are slightly different, these are

1.33 for standard definition televsion/DV, etc
1.78 for HDTV, 16x9 video
1.85 for 35mm widescreen
2.35 for 35mm anamorphic

Rob Lohman · February 27th, 2003, 06:26 PM

NTSC DV is 720x480, not 486. PAL is 720x576. You have two
aspect ratios. Pixel & frame. Both PAL and NTSC frame aspect
ratios are 4:3 (yes, even with the above figures if you take
pixel aspect into account).

Besides frame aspect we have pixel aspect which determines
how a square pixel should look. PAL is 1.067 (ie, the pixel is
1.067 times more wide than it is high) and NTSC is 0.9 (ie, the
pixel is less wide than it is high).

Common frame aspects are 4:3, 16:9, 1.85 & 2.35.

Jeff Donald · February 27th, 2003, 09:31 PM

I was talking about this with a retired friend of mine. Well, I guess he has a lot of time on his hands because he emailed me a list of many common and not so common formats.

Format......... Variation.......................................... Aspect Ratio ..........Desc ............... Type ................. Dimensions

Std 35mm Panavision Combined HR HDTV............... 1.33........................ TV 4:3............. TV Trans............... 0.617x0.464"

Std 35mm Panavision ..........................................1.33........................ TV 4:3............. TV Trans................ 0.792x0.594"

Std 35mm Panavision.......................................... 1.33........................ TV 4:3............. TV Safe Action...... 0.713x0.535"

Std 35mm Panavision.......................................... 1.78........................ HDTV 16:9...... TV Trans................ 0.825x0.464"

Std 35mm Panavision.......................................... 1.85........................ Widescreen 1.85 Projected............. 0.825x0.446"

Std 35mm Panavision.......................................... 2.4.......................... Anamorphic....... Projected............... 0.825x0.69"

Std 35mm Arri...................................................... 1.33.......................... TV 4:3.......... ...TV Safe Action......... 18.1x13.6mm

Std 35mm Arri...................................................... 1.33.......................... TV 4:3.............. TV Trans ..................20.2x15.2mm

Std 35mm Arri ......................................................1.78.......................... HDTV 16:9...... TV Trans.................. 21x11.8mm

Std 35mm Arri..................................................... 1.85.......................... Widescreen 1.85 Projected.............. 21x11.3mm

Std 35mm Arri .....................................................2.35.......................... Anamorphic...... Projected..................21x18.2mm

Super 35mm Panavision................................. 1.33........................... Full...................... Gate......................... 0.98x0.735"

Super 35mm Panavision................................. 1.33........................... TV 4:3 .................TV Trans.................. 0.706x0.531"

Super 35mm Panavision................................ 1.78............................ HDTV 16:9......... TV Trans.................. 0.945x0.531"

Super 35mm Panavision................................1.85.............................. Widscreen 1.85 ....Projected.............. 0.945x0.511"

Super 35 Panavision ......................................2.4 ...............................Widescreen 2.4 ...Projected ..............0.945x0.394"

Super 35mm Arri ..............................................1.33........................... Full ........................Gate......................... 24x18mm

Super 35mm Arri............................................. 1.33............................ TV 4:3.............. TV Safe Action............. 22.5x16.9mm

Super 35mm Arri .............................................1.78.............................. HDTV 16:9 ......TV Safe Action.......... 22.5x12.65mm

Super 35mm Arri .............................................1.85........................... Widescreen 1.85.... Projected ..............23.5x12.7mm

Super 35mm Arri .............................................2.35........................... Widescreen 2.35.... Projected ..............23.5x10mm

Std 16mm Panavision ...................................1.33............................. TV 4:3.................... TV Trans................. 0.368x0.295"

Std 16mm Panavision ...................................1.33............................. TV 4:3................ TV Safe Action...........0.331x0.248"

Std 16mm Arri .................................................1.33............................. TV 4:3.................TV Trans..................... 9.35x7mm

Std 16mm Arri ................................................1.33.............................. TV 4:3 ...............TV Safe Action........... 8.4x6.3mm

Super 16mm Panavision .............................1.33.............................. TV 4:3 ...............TV Safe Action............ 0.331x0.248"

Super 16mm Panavision .............................1.78............................ HDTV 16:9.......... TV Trans .....................0.47x0.264"

Super 16mm Panavision .............................1.66......................... Widescreen 1.66.... Gate........................... 0.486x0.295"

Super 16mm Arri ...........................................1.33.............................. TV 4:3............. TV Safe Action.............. 8.4x6.3mm

Super 16mm Arri.......................................... 1.78.......................... HDTV 16:9........... TV Trans.................... 11.95x6.72mm

Super 16mm Arri.......................................... 1.66.................... Widescreen 1.66........... Gate....................... 12.35x7.5mm

Photographic 35mm.................................... 1.33.......................... 35mm ................Negative Image........... 32x24mm

Photographic 6x4.5 ..................................... 1.33.....................Medium Format ......Negative Image ...........56x42mm

Photographic 6x6........................................ 1.0...................... Medium Format ......Negative Image ..........56x56mm

Photographic 6x7....................................... 0.85.................... Medium Format .......Negative Image......... 56x69.5mm

Photographic 4x5..................................... 1.25...................... Large Format........... Negative Image ...........4x5"

Video 2/3".................................................. 1.78....................... TV 16:9 ....................16:9 CCD Sensor ........9.6x5.4mm

Video 2/3".................................................. 1.33....................... TV 4:3...................... 16:9 CCD Sensor......... 7.2x5.4mm

Video 2/3"................................................. 1.33 ....................... TV 4:3........................ 4:3 CCD Sensor...........8.8x6.6mm

Video 2/3"................................................ 1.78 ........................ TV 16:9 ......................4:3 CCD Sensor......... 8.8x4.95mm

Video 1/2" ................................................ 1.33........................ TV 4:3 ........................4:3 CCD Sensor......... 6.4x4.8mm

Video 1/4" ................................................ 1.33........................ TV 4:3 ........................4:3 CCD Sensor .........3.6x2.7mm

Video 1/3"................................................ 1.33 ........................ TV 4:3 ........................4:3 CCD Sensor .........4.8x3.6mm

BJ Heinley · February 27th, 2003, 11:49 PM

Well.. what can I say but thanks a million for all the help.. I'm digging my new community... and so many Texans... reminds me of home in Austin...

thanks again. -BJ

February 25th, 2003, 05:15 PM	#1
BJ Heinley Tourist Join Date: Feb 2003 Location: San Francisco, CA Posts: 4	common aspect ratios ... What are some common aspect ratios for DV and film? I know about 640x480 but don't really know any others.

February 27th, 2003, 12:03 AM	#2
Casey Visco Major Player Join Date: Nov 2001 Location: Boston, MA Posts: 280	NTSC DV is typically 720x486 Aspect Ratios (the ratio of width to height of the screen) are slightly different, these are 1.33 for standard definition televsion/DV, etc 1.78 for HDTV, 16x9 video 1.85 for 35mm widescreen 2.35 for 35mm anamorphic __________________ Casey Visco Glidecam Industries, Inc.

February 27th, 2003, 06:26 PM	#3
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	NTSC DV is 720x480, not 486. PAL is 720x576. You have two aspect ratios. Pixel & frame. Both PAL and NTSC frame aspect ratios are 4:3 (yes, even with the above figures if you take pixel aspect into account). Besides frame aspect we have pixel aspect which determines how a square pixel should look. PAL is 1.067 (ie, the pixel is 1.067 times more wide than it is high) and NTSC is 0.9 (ie, the pixel is less wide than it is high). Common frame aspects are 4:3, 16:9, 1.85 & 2.35. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

February 27th, 2003, 09:31 PM	#4
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	I was talking about this with a retired friend of mine. Well, I guess he has a lot of time on his hands because he emailed me a list of many common and not so common formats. Format......... Variation.......................................... Aspect Ratio ..........Desc ............... Type ................. Dimensions Std 35mm Panavision Combined HR HDTV............... 1.33........................ TV 4:3............. TV Trans............... 0.617x0.464" Std 35mm Panavision ..........................................1.33........................ TV 4:3............. TV Trans................ 0.792x0.594" Std 35mm Panavision.......................................... 1.33........................ TV 4:3............. TV Safe Action...... 0.713x0.535" Std 35mm Panavision.......................................... 1.78........................ HDTV 16:9...... TV Trans................ 0.825x0.464" Std 35mm Panavision.......................................... 1.85........................ Widescreen 1.85 Projected............. 0.825x0.446" Std 35mm Panavision.......................................... 2.4.......................... Anamorphic....... Projected............... 0.825x0.69" Std 35mm Arri...................................................... 1.33.......................... TV 4:3.......... ...TV Safe Action......... 18.1x13.6mm Std 35mm Arri...................................................... 1.33.......................... TV 4:3.............. TV Trans ..................20.2x15.2mm Std 35mm Arri ......................................................1.78.......................... HDTV 16:9...... TV Trans.................. 21x11.8mm Std 35mm Arri..................................................... 1.85.......................... Widescreen 1.85 Projected.............. 21x11.3mm Std 35mm Arri .....................................................2.35.......................... Anamorphic...... Projected..................21x18.2mm Super 35mm Panavision................................. 1.33........................... Full...................... Gate......................... 0.98x0.735" Super 35mm Panavision................................. 1.33........................... TV 4:3 .................TV Trans.................. 0.706x0.531" Super 35mm Panavision................................ 1.78............................ HDTV 16:9......... TV Trans.................. 0.945x0.531" Super 35mm Panavision................................1.85.............................. Widscreen 1.85 ....Projected.............. 0.945x0.511" Super 35 Panavision ......................................2.4 ...............................Widescreen 2.4 ...Projected ..............0.945x0.394" Super 35mm Arri ..............................................1.33........................... Full ........................Gate......................... 24x18mm Super 35mm Arri............................................. 1.33............................ TV 4:3.............. TV Safe Action............. 22.5x16.9mm Super 35mm Arri .............................................1.78.............................. HDTV 16:9 ......TV Safe Action.......... 22.5x12.65mm Super 35mm Arri .............................................1.85........................... Widescreen 1.85.... Projected ..............23.5x12.7mm Super 35mm Arri .............................................2.35........................... Widescreen 2.35.... Projected ..............23.5x10mm Std 16mm Panavision ...................................1.33............................. TV 4:3.................... TV Trans................. 0.368x0.295" Std 16mm Panavision ...................................1.33............................. TV 4:3................ TV Safe Action...........0.331x0.248" Std 16mm Arri .................................................1.33............................. TV 4:3.................TV Trans..................... 9.35x7mm Std 16mm Arri ................................................1.33.............................. TV 4:3 ...............TV Safe Action........... 8.4x6.3mm Super 16mm Panavision .............................1.33.............................. TV 4:3 ...............TV Safe Action............ 0.331x0.248" Super 16mm Panavision .............................1.78............................ HDTV 16:9.......... TV Trans .....................0.47x0.264" Super 16mm Panavision .............................1.66......................... Widescreen 1.66.... Gate........................... 0.486x0.295" Super 16mm Arri ...........................................1.33.............................. TV 4:3............. TV Safe Action.............. 8.4x6.3mm Super 16mm Arri.......................................... 1.78.......................... HDTV 16:9........... TV Trans.................... 11.95x6.72mm Super 16mm Arri.......................................... 1.66.................... Widescreen 1.66........... Gate....................... 12.35x7.5mm Photographic 35mm.................................... 1.33.......................... 35mm ................Negative Image........... 32x24mm Photographic 6x4.5 ..................................... 1.33.....................Medium Format ......Negative Image ...........56x42mm Photographic 6x6........................................ 1.0...................... Medium Format ......Negative Image ..........56x56mm Photographic 6x7....................................... 0.85.................... Medium Format .......Negative Image......... 56x69.5mm Photographic 4x5..................................... 1.25...................... Large Format........... Negative Image ...........4x5" Video 2/3".................................................. 1.78....................... TV 16:9 ....................16:9 CCD Sensor ........9.6x5.4mm Video 2/3".................................................. 1.33....................... TV 4:3...................... 16:9 CCD Sensor......... 7.2x5.4mm Video 2/3"................................................. 1.33 ....................... TV 4:3........................ 4:3 CCD Sensor...........8.8x6.6mm Video 2/3"................................................ 1.78 ........................ TV 16:9 ......................4:3 CCD Sensor......... 8.8x4.95mm Video 1/2" ................................................ 1.33........................ TV 4:3 ........................4:3 CCD Sensor......... 6.4x4.8mm Video 1/4" ................................................ 1.33........................ TV 4:3 ........................4:3 CCD Sensor .........3.6x2.7mm Video 1/3"................................................ 1.33 ........................ TV 4:3 ........................4:3 CCD Sensor .........4.8x3.6mm __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

February 27th, 2003, 11:49 PM	#5
BJ Heinley Tourist Join Date: Feb 2003 Location: San Francisco, CA Posts: 4	Well.. what can I say but thanks a million for all the help.. I'm digging my new community... and so many Texans... reminds me of home in Austin... thanks again. -BJ __________________ - BJ