nice details to be aware of, thanks for the insights
On 9/25/05, John Layt <[EMAIL PROTECTED]> wrote: > On Sat, 24 Sep 2005 15:10, jm wrote: > > i would like to get a webcam with linux support, that gives excellent > > broadcast quality rather than the grainy garbage you see in so many > > products. any recommendations that i can check into? > > The problem with most webcams is that they use USB1.1 interfaces which > severely limits their bandwidth and hence image quality, even with those > proprietary compression schemes that make them hard to support under linux. > I've seen webcams that claim hi-res in their advertising, but on closer > inspection you find either a lo-res CCD with software interpolation on the > the PC, or a higher-res CCD with high compression levels going on before > getting pushed down the wire. > > If you want better quality, you need to look for cams that require USB2 or > Firewire (that is _require_, not just _support_ as they're still low-res) and > use the full bandwith for the image. They're very rare beasts so far as > no-one seems to be demanding them, possibly because of the increased internet > bandwidth and frame dropping when used for video chatting. About the only > one I've ever seen in the consumer segment is the iBot2 which supported > native 640x480 resolution, but the maker has gone out of business, possibly > due to bad reviews. There's top-end units as used by security applications > and those ummm "non-family-oriented" websites, but ultimately, quality > costs :-) > > Another alternative is a DV camcorder with USB2 or Firewire streaming, or > analogue output form a camcorder with a video capture card. > > John. > > P.S. Replies to your posting are not appearing on the list as you are a gmail > user, so your posts have a reply-to set for your gmail address rather than > the mailing list, I think there's a setting you can tweak to change this, or > at least mention this in the first line of your mail. Thanks! > Send instant messages to your online friends http://au.messenger.yahoo.com > > > > ____________________________________________________ > Want to buy your Pack or Services from Mandriva? > Go to http://store.mandriva.com > Join the Club : http://www.mandrivaclub.com > ____________________________________________________ > > > -- since this is a gmail account, please verify the mailing list is included in the reply to addresses
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