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320x240 it is Ok?

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I was just reading this then I saw your post.

 

Footage must be at least 480 pixels in height with an aspect ratio of at least 4:3. We are asking that film clips try and abide by the NTSC standard of 29.97fps (frames per second) with a time limit no longer than 60 seconds. Film clips that are uploaded with the PAL standard of 25fps are also OK.

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Does anyone know how that pixel resolution translates into line resolution? All I see on video-cameras are (1) number of pixels of their still image capabilities, and (2) number of lines in their video capture. I thought lines were the videography standard - but now I don't know, say, what 300 vertical line resolution equals in terms of pixels....

 

help?

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What do they mean by an aspect ration of at least 4:3? I imagine it means 4:3 or wider, but it isn't very clear.

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Footage must be at least 480 pixels in height with an aspect ratio of at least 4:3.

 

This means that if you were to take some number, and divide it by 480, you would get 4/3 or 1.3333.

 

In this case, the minimum size footage that you can submit would be 640 pixels in width, and 480pixels in height. 640/480=4/3 or 1.333.

 

Another example would be is if you have a 480px height and 720px width, your aspect ratio would be 1.5 or 6:4.

 

If you have a movie with dimensions 700px x 700px, this is does not fit our guidelines as 1.00 is less than 4/3.

 

Hope this helps!

 

--Adam S. Kirschner

Programmer/Tech Support

ShutterStock, Inc.

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What do they mean by an aspect ration of at least 4:3? I imagine it means 4:3 or wider, but it isn't very clear.

 

The two basic ratios in US video are 4:3 (standard old-school television) with four parts width to three parts height, and 16:9 which would cover the newer plasma / LCD "widescreen" dimensions.

 

The term widescreen can be confusing because a widescreen motion picture can end up on home DVD in a variety of ratios like 1.85:1 or 2.35:1 that are "widescreen" but appear onscreen as letterboxed (black area at the top and bottom of the screen). To fill a plasma screen from top to bottom and side to side, the true 16:9 dimension is normally 1024x576. That's what I design in with Photoshop for plasma screen 2D graphics.

 

Your pixel sizes for 4:3 would be at minimum, 640x480. Digital editors using Avid and Final Cut would likely rather see 720x480 or 720x540 (the software will create the proper dimension when it imports -- otherwise a circle turns into an oval but that's an editor's problem. It has something to do with a magical and hard to comprehend thing called a square pixel :)

 

Good luck!

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What do they mean by an aspect ration of at least 4:3? I imagine it means 4:3 or wider, but it isn't very clear.

 

The two basic ratios in US video are 4:3 (standard old-school television) with four parts width to three parts height, and 16:9 which would cover the newer plasma / LCD "widescreen" dimensions.

 

Your pixel sizes for 4:3 would be at minimum, 640x480. Digital editors using Avid and Final Cut would likely rather see 720x480 or 720x540 (the software will create the proper dimension when it imports -- otherwise a circle turns into an oval but that's an editor's problem :)

 

The dimension for 16:9 would most likely be 1024x576. That's what I design in with Photoshop for plasma screen 2D graphics.

 

Good luck!

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