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Old Mar 19, 2004, 5:04 PM   #11
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Apparently (according to a Shutterbug review) the IS in the camera Minolta has does not function in low light situations ..... go figure, just when you need it.

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Old Mar 19, 2004, 6:47 PM   #12
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An IS system that doesnt wrk in low light ...? Maybe im way off base but that generally implies software routines being employed to perform IS via edge detection and contrast area comparisons rather then a mechanical type ... no?
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Old Mar 19, 2004, 7:53 PM   #13
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Quote:
Originally Posted by mrkryz
An IS system that doesnt wrk in low light ...? Maybe im way off base but that generally implies software routines being employed to perform IS via edge detection and contrast area comparisons rather then a mechanical type ... no?
It's based on accelerometers, ie motion sensors! How else do you detect movements?... Turn on the light? :lol: :lol: :lol:

There's an animation of its operation over here: http://www.dpreview.com/reviews/minoltadimagea1/
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Old Mar 19, 2004, 10:32 PM   #14
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Well geeze no need to make fun of me ! LOL

The reason I responded with that comment is that previous IS systems built into cameras utilized multiple frame diferentiation routines that compared high contrast areas to determine alignment (focus) hence they did not perform well at all in low light...
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Old Mar 19, 2004, 10:42 PM   #15
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FYI

http://imageevent.com/ralf/a1samples...=0&w=4&s=0&z=4

Nightime here as well: http://konicaminolta.jp/english/prod...age-a2/02.html

... Mrkryz you're correct, basically that's how "Digital" IS works on some video cameras. However with camcorder you have some leeway in that the capture is "time-shifted" without you knowing since the tape is running constantly. With digicam the event has to be instantaneous: The data have to be captured and shift out instantly from the CCD, and there's just no time to capture multi-frames and perform edge detections... so what you see usually are an indepent mechanism from the CCD which either move the optical elements or the CCD itself based on solid-state motion detector in the x and y directions. 8)
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