Am I oversharpening
in [Digital Cameras]
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From: grant kinsley on 14 Jun 2005 21:30 On 13 Jun 2005 21:34:36 -0700, george_preddy(a)yahoo.com wrote: > > >grant kinsley wrote: >> On 13 Jun 2005 19:33:40 -0700, george_preddy(a)yahoo.com wrote: >> >> > >> > >> >KennyJr wrote: >> >> I've spent the last several days reading up on the foveon image sensor >> >> and I've got to say that I like the idea. One pixel site reading all >> >> three colors. It's a good idea with a lot of promise. >> >> >> >> I've also spent the last several days looking at pictures from Sigma SD9 >> >> and SD10 cameras. So far I haven't been impressed. >> > >> >RAW only. While great for pros, this means amatures have to do what >> >most aren't capable of doing--delving deeply into the digital domain. >> >If you understand digital and are comfortable with the most advanced >> >aspects, you've get stunning results. But there is definitely a time >> >penalty for the quality increase. >> > >> >> I don't know if the >> >> problem is with the sensor or with the firmware in the camera. Hopefully >> >> Foveon and/or Sigma will work the bugs out of the technology. >> >> >> >> I think once they work the bugs out and start offering lower prices on >> >> cameras with foveon sensors they'll start cutting into the market now >> >> dominated by cameras using Bayer sensors. Until that time though I'll >> >> stick with cameras that use the Bayer sensor. >> > >> >Their currently selling for about 1/4th the price of a similar MP count >> >Bayer DSLR, although they used to be less than 1/10th the cost. >> >> a sensel is not a pixel. > >Pixel count is meaningless, Bayers upscales all images at least 400%. >Fujis by 800%. No, pixel count isn't meaningless, otherwise you wouldn't lie about it all the time. upscaling and interpolating are not the same thing. There are 8MP of data in a 20D image. It is interpolated to produce a full colour image, but there are 8MP of distinct data. > >> I don't think there are any current DSLRs that go down as low as the >> Sigmas in pixel count, so your statement is ratehr meaningless > >13.72MP isn't that common. The Sigmas output 4536 x 3024 pixels images. No a Sigma is 3.43 MP, everything else is upscaling. There is only 3.43 MP of Data in an SD9/10 image. producing any more MP is only increased number of duplicate pixels. GK
From: george_preddy on 19 Jun 2005 08:51 JPS(a)no.komm wrote: > In message <1118723676.491758.184380(a)o13g2000cwo.googlegroups.com>, > george_preddy(a)yahoo.com wrote: > > >13.72MP isn't that common. The Sigmas output 4536 x 3024 pixels images. > > The Sigma software does; the camera images are only 3.43MP. Canon's software records 8M pixels from only 2M full color samples, assembled from purely monochrome photosites. My 1DMkII is a 2MP camera by Sigma full color optical standard. The SD9 is a 13.72MP camera from Canon's monochrome interpolated standard. Did you fall for your scanners advertised INTERPOLATED resolution too? Savvy digital users know better than to think interpolated = optical resolutions. You are a Bayer maker's dream customer. Why didn't you buy a "12MP" (interpolated for 1.5M optical full color samples) Fuji S2, instead of your lowly 6MP-interpolated (from 1.5M full color samples) Canon 10D?
From: Randall Ainsworth on 19 Jun 2005 10:00 In article <1119185476.161727.307640(a)g49g2000cwa.googlegroups.com>, <george_preddy(a)yahoo.com> wrote: > Why didn't you buy a "12MP" (interpolated for 1.5M optical full color > samples) Fuji S2, instead of your lowly 6MP-interpolated (from 1.5M > full color samples) Canon 10D? Why did you allegedly buy a 3.42MP kiddie toy?
From: george_preddy on 19 Jun 2005 10:36 Randall Ainsworth wrote: > In article <1119185476.161727.307640(a)g49g2000cwa.googlegroups.com>, > <george_preddy(a)yahoo.com> wrote: > > > Why didn't you buy a "12MP" (interpolated for 1.5M optical full color > > samples) Fuji S2, instead of your lowly 6MP-interpolated (from 1.5M > > full color samples) Canon 10D? > > Why did you allegedly buy a 3.42MP kiddie toy? What does that make the $10,000, but only 2.76MP (in color) 1Ds? A ripoff kiddie toy.
From: george_preddy on 19 Jun 2005 10:36
Randall Ainsworth wrote: > In article <1119185476.161727.307640(a)g49g2000cwa.googlegroups.com>, > <george_preddy(a)yahoo.com> wrote: > > > Why didn't you buy a "12MP" (interpolated for 1.5M optical full color > > samples) Fuji S2, instead of your lowly 6MP-interpolated (from 1.5M > > full color samples) Canon 10D? > > Why did you allegedly buy a 3.42MP kiddie toy? What does that make the $10,000, but only 2.76MP (in color) 1Ds? A ripoff kiddie toy. |