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#1
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"3MP" Showdown
3MP Bayer image (0.75 Foveon MPs)
http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original |
#2
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[OT] [GP] "3MP" Showdown
George Preddy wrote:
3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original {please note} The person posting under the name of George or Georgette Preddy (and other pseudonyms) has an ungrounded but zealous faith that current implementation of the Foveon chip is superior to all other chip technologies. He will cite portions of reviews to ostensibly support his claims, and will repeat, ad naseum, complete lines of out-of-context material. His claims may well be ignored, or at the very least verified since most of them are extreme distortions and some are out and out fabrications." Moreover, "Mr." "Preddy" has claimed to be a photographer (pro!), but cannot bring himself to post a single picture with EXIF info that he shot himself, in spite of repeated requests and challenges to do so. Apparently he loathes anything related to Canon and loves everything about Sigma cameras and lenses. His "claims" may be ignored, and he is doing Sigma, and anyone related to the Foveon chip, no good at all by arousing ire, increasing the N/S ratio, and generally spamming this newsgroup. -- John McWilliams |
#3
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"3MP" Showdown
John McWilliams wrote in message news:fq_Fc.24529$Oq2.19544@attbi_s52...
George Preddy wrote: 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original {please note} The person posting under the name of George Seems like you are at a loss to explain the mega dominance of Sigma in this market. |
#4
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"3MP" Showdown
"George Preddy" wrote in message m... John McWilliams wrote in message news:fq_Fc.24529$Oq2.19544@attbi_s52... George Preddy wrote: 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original {please note} The person posting under the name of George Seems like you are at a loss to explain the mega dominance of Sigma in this market. Steve, you are wrong, again, as usual. Sigma does not dominate this market. Bart |
#5
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"3MP" Showdown
"Bart van der Wolf" wrote in message ... "George Preddy" wrote in message m... John McWilliams wrote in message news:fq_Fc.24529$Oq2.19544@attbi_s52... George Preddy wrote: 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original {please note} The person posting under the name of George Seems like you are at a loss to explain the mega dominance of Sigma in this market. Steve, you are wrong, again, as usual. Sigma does not dominate this market. Bart Sigma doesn't dominate *any* market. Mark |
#6
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"3MP" Showdown
"Mark B." wrote:
Sigma doesn't dominate *any* market. They dominate the market for cameras and lenses that use the Sigma lens mount. grin -- Mark Roberts Photography and writing www.robertstech.com |
#7
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"3MP" Showdown
George Preddy wrote:
John McWilliams wrote in message news:fq_Fc.24529$Oq2.19544@attbi_s52... George Preddy wrote: 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original {please note} The person posting under the name of George Seems like you are at a loss to explain the mega dominance of Sigma in this market. you misspelled insignificance ... |
#8
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"3MP" Showdown
"George Preddy" wrote in message om... 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original Yup, you proved that the Sigma takes a significantly better photo than a compact P&S that (in Australia at least) costs 1/6th the price of the Sigma. I notice that there is no exif info for the Sigma - what ISO? what exposure settings? The only way to make a proper comparison is if both cameras take a photo of the same subject in the same lighting. Considering I've seen much better quality photos than that out of 3MP P&S's I'm dubious about how accurate the ISO settings etc are with the Sony. Considering the Sigma has a larger sensor size and better lens than the DSCP72, and costs several times its price, it's to be expected that it will always take a better photo in the same conditions - irrespective of whether it is a Foveon or a Bayer sensor. This is just the same as how a cheap film SLR will usually take a better photo than a film P&S, even with the same film. |
#9
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"3MP" Showdown
Justin Thyme wrote:
"George Preddy" wrote in message om... 3MP Bayer image (0.75 Foveon MPs) http://www.pbase.com/image/30338213/original 3MP Foveon image (13.72 Bayer MPs) http://www.pbase.com/image/23256593/original Yup, you proved that the Sigma takes a significantly better photo than a compact P&S that (in Australia at least) costs 1/6th the price of the Sigma. What it shows is that a small-sensor digicam will produce results which are dominated by noise if you run it at high iso. The image at: http://www.pbase.com/image/30968764/original was taken with a similarly cheap compact P&S. It's by no means a technically flawless shot but it's in a different league to the Sony picture George referenced. The picture of the SD9 contains a useful illustration of why blur filters should be used even when sampling with full colour at each location. Simply view the picture at 50% with an application that does not do proper antialiasing for generating such a view (eg GIMP) - artifacts are very visible in the filter threads. Similarly my own picture shows a mess of artifacts at 25% - Len |
#10
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"3MP" Showdown
Leonard wrote:
http://www.pbase.com/image/30968764/original correction: http://www.pbase.com/image/31010266/original I redid the rotation and crop down to 3MP with jpegtran (lossless) so as to show more closely the actual camera output. The main difference is the file size is quite a bit smaller. - Len |
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