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jpiazzo
08-13-2005, 02:59 AM
I probably know this answer - the data rate is too high or cameras don't work that way- but I'll ask it anyway?

Is there anyway to use a megapixel still camera - connected directly to a computer to capture 30fps (or so) via USB or Firewire?

For instance, my Canon powershot produces 1600 x 1200 images at about 400K.
Firewire transfer rate (I THINK) is 25mps - thus doesn't this work out to 30 frames at about 12 megs, or is my math wrong?

What am I missing?

The reason I ask is I thought this would be a good way to record shots designed for low budget effects work, keying etc, for DV based productions.

JP
rebo
08-13-2005, 05:50 AM
Cameras don't work that way :/. Some may have a kind of video record function but not in the way you suggest.
el_diablo
08-13-2005, 06:36 AM
Your Cannon cant capture more than a few frames per second. Top SLRs capture 7-8, so there is no way AFAIK.
erlik
08-13-2005, 09:27 AM
Sstill cameras cannot be used as video cameras at their full resolution. It's usually 640x480.

But you can always use something like this one (http://www.digitallyunique.com/dxg-202v.html). It's just $100. Although I don't see the real resolution, you have "2304 x 1728, interpolated". Unfortunately, it uses only 512 MB cards, so it's not going to record long sequences.

Then there's Sony (http://news.sel.sony.com/pressrelease/3929) or possibly Canon's MVX35i (http://www.canon.co.nz/products/cameras/cameras_video/mvx35i_specs.html).
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