When/why use 640x480 vs 320 x 240?

Discussion in 'Amateur Video Production' started by Doc, Dec 8, 2003.

  1. Doc

    Doc Guest

    Looking at various capture settings, why would you use 640x480 or 320x240?
    I understand the cropping concept, that it doesn't capture the portion that
    isn't going to show up on a tv screen, but what is gained by capturing the
    larger size vs the smaller?

    Thanks!
     
    Doc, Dec 8, 2003
    #1
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  2. Doc

    PTRAVEL Guest

    This has nothing to do with cropping, but resolution. A 640480 image has 4
    times the resolution of one that is 320 x 240, i.e. it looks better.
     
    PTRAVEL, Dec 8, 2003
    #2
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  3. Doc

    Bariloche Guest

    Generally speaking, one captures at the higher resolution (640x480),
    for the best results. But there can be exceptions:

    - If you plan to make a VCD, which only has 352x240 resolution,
    capturing at 320x240 can make sense.

    - If you hardware lags at 640x480, you may need to capture at a lower
    resolution.

    - If you intend to play the material in the PC, either you do that
    with a player that deinterlaces the 640x480, or you may prefer to
    content yourself with the 320x240 capture, which bears no interlacing
    "defects". When playing on TV, on the other hand, the higher
    resolution gives you a richer image -the difference is very obvious to
    sight.
     
    Bariloche, Dec 9, 2003
    #3
  4. If you don't mind to lose a lot of detail ...
    You should deinterlace with a video editor like Vdub/AviSynth.
    Sure, you through away half of the information.
    Wilbert
     
    Wilbert Dijkhof, Dec 10, 2003
    #4
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