non-anamorph dv at DVinfo.net

Tim Commeijne · March 24th, 2005, 05:39 AM

hello everyone,

We all know that 16:9 on dv is anamorph (a squeezed 720x576, 4:3 image) but what would the image size be if it was not anamorph? 720x405 or 1024x576, or even something else?

greetz, Tim

Boyd Ostroff · March 24th, 2005, 06:57 AM

All DV is 720x576 (PAL) or 720x480 (NTSC). The only thing that changes with anamorphic/non-anamorphic is how the display device interprets the width of the pixels.

Benjamin Durin · March 24th, 2005, 10:18 PM

If you want a 16:9 picture with square pixels, I believe you would have a 1024x576 picture in PAL. In fact it is what I use when I make still pictures in Photoshop or CG animations for 16:9. I always use 1024x576 as it is easier to work with square pixels on a computer. And when I import in my NLE it fits as a charm !

Boyd Ostroff · March 24th, 2005, 10:53 PM

Ah, OK... I didn't understand your question. Benjamin is right. If you're dealing with square pixels and a 16:9 aspect ratio then the math is very simple. For an image with 576 vertical pixels: 576 x 16 / 9 = 1024. Your other example would also be correct: 405 x 16 / 9 = 720.

But you would only use these frame sizes if exporting a file to something like Quicktime for viewing on a computer monitor. For DV the display device does the stretching and the frame is always 720x576.

March 24th, 2005, 05:39 AM	#1
Tim Commeijne Regular Crew Join Date: Nov 2004 Location: Europe, Belgium, Oostende Posts: 44	non-anamorph dv hello everyone, We all know that 16:9 on dv is anamorph (a squeezed 720x576, 4:3 image) but what would the image size be if it was not anamorph? 720x405 or 1024x576, or even something else? greetz, Tim

March 24th, 2005, 06:57 AM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	All DV is 720x576 (PAL) or 720x480 (NTSC). The only thing that changes with anamorphic/non-anamorphic is how the display device interprets the width of the pixels.

March 24th, 2005, 10:18 PM	#3
Benjamin Durin Major Player Join Date: Oct 2004 Location: Taipei, Taiwan Posts: 212	If you want a 16:9 picture with square pixels, I believe you would have a 1024x576 picture in PAL. In fact it is what I use when I make still pictures in Photoshop or CG animations for 16:9. I always use 1024x576 as it is easier to work with square pixels on a computer. And when I import in my NLE it fits as a charm !

March 24th, 2005, 10:53 PM	#4
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	Ah, OK... I didn't understand your question. Benjamin is right. If you're dealing with square pixels and a 16:9 aspect ratio then the math is very simple. For an image with 576 vertical pixels: 576 x 16 / 9 = 1024. Your other example would also be correct: 405 x 16 / 9 = 720. But you would only use these frame sizes if exporting a file to something like Quicktime for viewing on a computer monitor. For DV the display device does the stretching and the frame is always 720x576.