Widescreen 1.2 to square 1.0 conversion? at DVinfo.net

Nathan Quattrini · October 13th, 2007, 08:37 AM

I have a 720x480 project in Premiere with 1.2 PAR, but the program I`m making the graphics with doesn`t have a PAR option, just dimensions. So if in all technicality the 1.2 was converted to square pixel dimensions what would it be? 760X400 or something?

Boyd Ostroff · October 13th, 2007, 08:59 AM

If using square pixels then the size should be in either the 4:3 or 16:9 proportion depending on the format. So for a 4:3 image if you want the height to be 480 pixels then the width would be: 4 / 3 X 480 = 640, resulting in a 640x480 image.

For 16:9 the math is the same; if you want the result to be 480 pixels high then you get 16 / 9 x 480 = 854 (rounding up since you can't have a fractional pixel :-) This would give you a 854x480 image.

If you want a different height image you can just plug it into the formula in place of the 480 above.

Nathan Quattrini · October 13th, 2007, 09:12 AM

woah...i didn't know the math was so simple. Thanks so much!

*EDIT*

hmm still a little 'short' on either side, but at least i have a guideline now, thanks

October 13th, 2007, 08:37 AM	#1
Nathan Quattrini Major Player Join Date: Jan 2007 Location: Warwick, Rhode Island Posts: 740	Widescreen 1.2 to square 1.0 conversion? I have a 720x480 project in Premiere with 1.2 PAR, but the program I`m making the graphics with doesn`t have a PAR option, just dimensions. So if in all technicality the 1.2 was converted to square pixel dimensions what would it be? 760X400 or something? __________________ Cinematography Site

October 13th, 2007, 09:12 AM	#3
Nathan Quattrini Major Player Join Date: Jan 2007 Location: Warwick, Rhode Island Posts: 740	woah...i didn't know the math was so simple. Thanks so much! EDIT hmm still a little 'short' on either side, but at least i have a guideline now, thanks __________________ Cinematography Site

October 13th, 2007, 08:59 AM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	If using square pixels then the size should be in either the 4:3 or 16:9 proportion depending on the format. So for a 4:3 image if you want the height to be 480 pixels then the width would be: 4 / 3 X 480 = 640, resulting in a 640x480 image. For 16:9 the math is the same; if you want the result to be 480 pixels high then you get 16 / 9 x 480 = 854 (rounding up since you can't have a fractional pixel :-) This would give you a 854x480 image. If you want a different height image you can just plug it into the formula in place of the 480 above.