Article View: sci.electronics.design
Article #1103Re: Electronics Engineering Video Blog
From: Mark Harriss
Date: Mon, 06 Apr 2009 03:51
Date: Mon, 06 Apr 2009 03:51
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David L. Jones wrote: > I'm using an "ancient" 2 y/o webcam. > Just discovered that that frame rate appears to vary with the image > brightness! > When I useed it the other day to shoot it was working fine at 30fps, but I > was playing with it this morning and it was only 10fps. Point it toward a > bright light source like the window and it climbs up to near 30fps again. A > linear type increase with brightness. Weird. Not that weird, it obviously slows down to gather enough photons for the exposure, you could try fitting a larger diameter lens than the tiny one it usually has, or even try a telescope eyepiece to obtain the extra photon gathering power needed. Frame rate and image noise should improve accordingly. So when does the watch calculator kit hit the market?. I want to add an IR LED so it can be programmed with the 400 odd TV remote turn off and turn on codes like that guy's invention. Cheers, Mark
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