there are 3-imager video cameras, are there 3-imager still cameras?
in [Digital Cameras]
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From: Bob Fleischer on 29 Jan 2010 13:27 If having three imagers is desirable for a better video camera, are there any three-imager still cameras? If not, why? Bob
From: nospam on 29 Jan 2010 13:45 In article <hjv99s$no4$1(a)rjf7r.motzarella.org>, Bob Fleischer <bobfnospam(a)duxsysnospam.com> wrote: > If having three imagers is desirable for a better video camera, are > there any three-imager still cameras? If not, why? keeping three chips perfectly aligned is *very* difficult and it would require a beam splitter which makes most lenses not work, there is three times as much data to move which means storage and cpu requirements triple, it's a lot more expensive and it doesn't offer much benefit.
From: Robert Spanjaard on 29 Jan 2010 14:04 On Fri, 29 Jan 2010 14:27:08 -0400, Bob Fleischer wrote: > If having three imagers is desirable for a better video camera, are > there any three-imager still cameras? If not, why? It's probably just too bulky and expensive considering the benefits. Low-light performance is not as important in still cameras as in video cameras, because the shutter speed isn't limited by the framerate. http://en.wikipedia.org/wiki/Three-CCD -- Regards, Robert http://www.arumes.com
From: Alfred Molon on 29 Jan 2010 15:25 In article <hjv99s$no4$1(a)rjf7r.motzarella.org>, bobfnospam(a)duxsysnospam.com says... > If having three imagers is desirable for a better video camera, are > there any three-imager still cameras? If not, why? There are cameras from Foveon which have special sensors which capture all three colour components at each pixel, as if the camera had three sensors. -- Alfred Molon ------------------------------ Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site
From: Save $3.99 on 29 Jan 2010 16:57
"Alfred Molon" <alfred_molon(a)yahoo.com> wrote in message news:MPG.25cd62c5ef75e1dc98c21c(a)news.supernews.com... > In article <hjv99s$no4$1(a)rjf7r.motzarella.org>, > bobfnospam(a)duxsysnospam.com says... >> If having three imagers is desirable for a better video camera, are >> there any three-imager still cameras? If not, why? > > There are cameras from Foveon which have special sensors which capture > all three colour components at each pixel, as if the camera had three > sensors. > -- > Name one video camera that uses a Foveon sensor? Canon offers the XL-H1 with a 3-chip 1/3", approx. 1.67 megapixels per CCD, CCD. |