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#11
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Jim Townsend wrote:
wrote: "It seems to have dropped out of view since its announcement 3 years ago. Foveon was supposed to take over the industry. What happened?" It was 5 years ago that Carver Mead, (one of Foveon's co-founders), did a series of press interviews, with some major papers and magazines. He reported that Foveon technology would not only do away with traditional bayer sensors, but it would replace film as well because per square inch, a foveon sensor had double the resolution of 35mm film :-) a mere 135 mp to meet 125 lpmm, to capture something like printed text. both sides of the foveon argument were intelltually dishonest. At least the technology got off the ground and a camera with the Foveon sensor could be purchased. It really is too bad it didn't live up to Mead's claims. It would be nice to own a digicam with double the resolution of 35mm film. |
#12
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Absolutely nothing.
-- http://www.chapelhillnoir.com home of The Camera-ist's Manifesto The Improved Links Pages are at http://www.chapelhillnoir.com/links/mlinks00.html A sample chapter from "Haight-Ashbury" is at http://www.chapelhillnoir.com/writ/hait/hatitl.html wrote in message ... It seems to have dropped out of view since its announcement 3 years ago. Foveon was supposed to take over the industry. What happened? Thanks, Norm Strong |
#13
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#14
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"DJ" wrote in message ... On Mon, 14 Mar 2005 22:25:35 -0800, wrote: It seems to have dropped out of view since its announcement 3 years ago. Foveon was supposed to take over the industry. What happened? The Prediot killed what little credibility it might have had. Thanks all for bringing me out into the light. I now have to ask the definition of 2 new words: Bayer and Prediot. Could I get a definition of those? I'll lay my cards on the table: I was an avid amateur photographer in the 40's and 50's, the days of the twin-lens reflex. I was into other things by the time the photo world was taken over by the 35mm SLR. I know essentially nothing about digital photography per se. Because of my lack of knowledge, I've hesitated buying a digital camera. I'd like to tack on the digital aspects to my existing knowledge of optics and film photography, so that I can make an intelligent choice of a digital camera. Will someone please direct me to a place where I can read up on sensors, both CCD and CMOS, and find out what the tradeoffs are in choice of sensor size, ISO speed, etc? Thanks once again. Norm |
#15
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#16
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Malcolm Stewart wrote:
"DJ" wrote in message .. . On Mon, 14 Mar 2005 22:25:35 -0800, wrote: The Prediot killed what little credibility it might have had. ... and guess what? Doing a clear out I came across a 3 year old news article saying that Microsoft had given it their blessing or some such. Is *that* what killed it? ----- Paul J. Gans |
#17
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On Tue, 15 Mar 2005 16:43:29 -0800, wrote:
"DJ" wrote in message .. . On Mon, 14 Mar 2005 22:25:35 -0800, wrote: It seems to have dropped out of view since its announcement 3 years ago. Foveon was supposed to take over the industry. What happened? The Prediot killed what little credibility it might have had. Thanks all for bringing me out into the light. I now have to ask the definition of 2 new words: Bayer and Prediot. Could I get a definition of those? I'll lay my cards on the table: I was an avid amateur photographer in the 40's and 50's, the days of the twin-lens reflex. I was into other things by the time the photo world was taken over by the 35mm SLR. I know essentially nothing about digital photography per se. Because of my lack of knowledge, I've hesitated buying a digital camera. I'd like to tack on the digital aspects to my existing knowledge of optics and film photography, so that I can make an intelligent choice of a digital camera. Will someone please direct me to a place where I can read up on sensors, both CCD and CMOS, and find out what the tradeoffs are in choice of sensor size, ISO speed, etc? Thanks once again. Norm Norm, sorry about the initial flip response. "The Prediot" was a frequent poster on this group calling himself George Preddy, who for ages persisted with one-eyed posts about the benefits of Foveon technology. He was generally regarded as a nutter. Foveon is/was a technology with a lot of promise and a very seductive logic, but in practice it failed to deliver. It may have been like the Beta/VHS argument. Beta is the superior technology but VHS won out commercially. In the case of Foveon vs Bayer, Bayer is the dominant technology, maybe because it has had the most R&D effort invested in it, but the state of the art is that it is way superior. It is generally agreed that right now Canon make the best sensors, at least in the APS-C format (22x15mm). Nikon and Konica-Minolta are close behind, making up some of the difference with smart support electronics. If you are serious about getting into digital, look closely at the digital SLRs, Canon 350D or 20D, Nikon D70 etc. Unless you are looking for something very compact and all-in-one, or lack the budget, dSLR is the only way to go. The feature sets can be very confusing to compare so you may need to spend a lot of time comparing, learning what all the terms mean and evaluating what's important to you. One of the very good resources is www.dpreview.com. They review a lot of cameras and explain a lot of the terminology they use. I am a little younger than you but also was an avid photographer in my younger years, using Roleiflexes, Hasselblad, SLRs (my father was a professional photographer, and I had access to a range of equipment - I grew up with a permanent darkroom in the house and D76 in my veins). Then I migrated to Australia and ceased photography for about 35 years. Now I'm back, combining my computer skills with a resurrected passion for photography, and having a ball. My Canon 300D is capable of things I could only dream of with my old Minolta SR1 (sic) and anything from Pan-F to Tri-X pushed to 1600 or HPS pushed to 3200 or 6400. Take a look at this: http://www.splatco.com/david/RS_CRW_7977-03.jpg That was shot at 1600ASA then pushed 2 more stops in the computer. That's 6400ASA! At the "slow end" the cameras are equally awesome, with the most amazing definition (at least with a good lens), good for poster-sized enlargements (IMHO). My one sadness is that my father never lived to see this revolution! So, hang out on dpreview. Google for "digital camera reviews", "sensor size" etc. Learn about the importance of sensor size (physical surface area) for low noise and the relative "unimportance" of pixel count. As you surf around you will initially discover more questions than you are answering. Good luck, and enjoy! David |
#18
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On Tue, 15 Mar 2005 16:43:29 -0800, wrote:
Thanks all for bringing me out into the light. I now have to ask the definition of 2 new words: Bayer and Prediot. Could I get a definition of those? Bayer filter: http://electronics.howstuffworks.com...l-camera12.htm Others have covered prediot. -- Bill Funk Change "g" to "a" |
#19
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rafeb wrote:
Half the area of 35 mm would be generous. The APS-C sensor (10D, 20D) covers only 40% of that area. The Sigma SD-10 sensor (13.8 x 20.7 mm) covers 33% of that area. Yup. The new Kodak CCD for the Pentax 645 medium format digital is almost twice the area of a 35mm film frame! http://www.dpreview.com/news/0503/05...645digital.asp |
#20
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