Interesting article in RedShark re aspect ratio
http://www.redsharknews.com/distribution/item/1870-what-you-need-to-know-about-aspect-...-letterboxing?
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That's supposed to be helpful to newbies? Just enough info, plus some inaccuracies and detailed tangential stuff, to ADD confusion, but not enough meat to clear things up.
Sorry if that trods on someone's toes, but I wouldn't recommend that page.
Scott -
No differentiation and explanation of Pixel and Display Aspect Ratio -> not really useful for any one who seriously wants to understand anything.
users currently on my ignore list: deadrats, Stears555 -
Agreed. The page only partially discusses two Display Aspect Ratios (DAR), 4:3 and 16:9. It won't help newbies understand the difference between Pixel Aspect Ratios (PAR) for video encoding, and Display Aspect Ratios for monitors and TVs. How would that page help someopne understand the following:
NTSC DVD: 720x480 pixels displayed as 4:3 (DAR). Displays full screen on 4:3 TV, side pillars on 16x9 TV.
PAL DVD: 720x576 pixels displayed as 4:3 (DAR). Displays full screen on 4:3 TV, side pillars on 16x9 TV.
NTSC DVD: 720x480 pixels displayed as 16:9 (DAR). Displays letterboxed on 4:3 TV, full screen on 16x9 TV.
PAL DVD: 720x576 pixels displayed as 16:9 (DAR). Displays letterboxed on 4:3 TV, full screen on 16x9 TV.
The same is true for 720x480/720x576 BluRay and AVCHD. Non-square pixel encoding here. No explanation on that page.
There are other aspect ratios, too. Movies aren't usually made at 16:9 except for TV. The number of image aspect ratios for movies worldwide has varied from square screen to 1.37:1, 1.6:1, 1.85:1, 2.2:1, 2.35:1, and so on. Newbies don't know how a 2.35:1 Panavision flick would be encoded on a 1920x1080 frame and why it displays as slightly letterboxed on a 16:9 TV.
The first wide screen movie was actually produced in 1897. More were produced in the 1920's and 1930's. Movies went wide screen on a regular basis by 1954 and multiple wide screen formats were quickly developed. Wide-screen displays have been around for twenty years and became commonly available by 2003. You'd think people would have caught on by now. But I expect another aspect ratio query to be posted here any time now.- My sister Ann's brother