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Why a Canon DSLR of only 3k x 2k @ 32-bit RGB out performs a film
scanned to the same resolution and same color depth? The grain factor? The tradistional film has the layered color sensor, unlike the digital camera that has planarized color array. Intuitively the digital camera should be inferior, quite opposite to the current observation. There are arbuments pointed to the grain noise factor in the film. If so, let's imitate what the digital camera does. If a film is made like a chemical color sensors, would it make it more digital friendly? and perhapes claim back the ground? |
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What are you using as a scanner ? A home flatbed or professional drum
scanner ? "Einton Newstein" wrote in message m... Why a Canon DSLR of only 3k x 2k @ 32-bit RGB out performs a film scanned to the same resolution and same color depth? The grain factor? The tradistional film has the layered color sensor, unlike the digital camera that has planarized color array. Intuitively the digital camera should be inferior, quite opposite to the current observation. There are arbuments pointed to the grain noise factor in the film. If so, let's imitate what the digital camera does. If a film is made like a chemical color sensors, would it make it more digital friendly? and perhapes claim back the ground? |
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Joe Pucillo wrote:
Another question: why do they have all those commercials for high-def TVs? The picture on those sets are no better than the low-def set I'm watching the commercial on! Exactly, take film and "dumb it down" using the same "home quality" output used for most digicam shots and of course they are going to look the same, just like a high def TV commercial isn't going to look "high def" of a low def TV. Since the printers can only deal with so many DPI at this time, they are the bottle neck. Whatever you feed into most printers is going to be limited by the printer, especially inkjets. I've used scanned 4X5 negatives vs scanned 6X4.5 images printed 8x10 on an inkjet and the 4X5 looks no better. Printed in the darkroom the difference is obvious. I do agree with the OP that film is going/needs to become more "digital friendly" and I wouldn't be surprized to see color negative film that is -only- scanable without the orange mask used for analog printing etc. -- Stacey |
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jjs wrote:
In article , Stacey wrote: [...] I do agree with the OP that film is going/needs to become more "digital friendly" and I wouldn't be surprized to see color negative film that is -only- scanable without the orange mask used for analog printing etc. Now that is a very interesting prophesy. I will remember the source when it happens. Well they already make "Digital disposables" (which have film in them), it can't be long before they -market- "Digital film" can it? -- Stacey |
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Wasn't it Einton Newstein who said...
Why a Canon DSLR of only 3k x 2k @ 32-bit RGB out performs a film scanned to the same resolution and same color depth? What does it matter - since the film already far exceeds the performance of the digital image? Consider this: Why a ink-jet printer of only 600dpi out performs a laser printer where the output is scanned and printed on the ink-jet? Why not just print on the laser to begin with? Another question: why do they have all those commercials for high-def TVs? The picture on those sets are no better than the low-def set I'm watching the commercial on! -- Joe Pucillo Baltimore, Maryland USA To reply by email, please remove the .xx |
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In article , Stacey
wrote: [...] I do agree with the OP that film is going/needs to become more "digital friendly" and I wouldn't be surprized to see color negative film that is -only- scanable without the orange mask used for analog printing etc. Now that is a very interesting prophesy. I will remember the source when it happens. Can you help with the stock market, too? I mean, besides the purchase of Kodak by Fujifilm. ![]() |
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Do you mean to say color negative film without the orange mask?
Stacey wrote: I do agree with the OP that film is going/needs to become more "digital friendly" and I wouldn't be surprized to see color negative film that is -only- scanable without the orange mask used for analog printing etc. -- Stacey |
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Einton Newstein wrote:
Why a Canon DSLR of only 3k x 2k @ 32-bit RGB out performs a film scanned to the same resolution and same color depth? The grain factor? Not with some fine grained films, and the latest in drum scanning. Also, consider that some colours are outside the RGB gamut range of a CCD or CMOS sensor, yet some films have little trouble capturing a wider range (like anything approaching Yellow or Cyan). The tradistional film has the layered color sensor, unlike the digital camera that has planarized color array. Layers of colour sensitive emulsion overlap in film structure. A CCD or CMOS imaging chip is really monochromatic by comparison, with a Bayer pattern and software to interpolate colours. I suggest reading this article to understand a bit mo http://www.peter-cockerell.net:8080/Bayer/bayer2.html Intuitively the digital camera should be inferior, quite opposite to the current observation. There are arbuments pointed to the grain noise factor in the film. Only a few articles have actually tested the resolution of imaging chips, and they work out near 50 lp/mm at best. Getting that resolution, or better, on film should not be too difficult. Colour is another issue, as is grain or noise. Also, many who complain about grain judge it on a computer monitor; and often the the grain that can show on a monitor will be absent in the final print. Another issue is aesthetic considerations. While a direct digital image may lack fine tonal details, it can often provide a pleasing or compelling image. Many of us like paintings, yet they are decidedly low resolution. Interesting and compelling images have been made in the past on film, and there should be little reason to think that should not continue; and the same should be true for direct digital imagery. If so, let's imitate what the digital camera does. If a film is made like a chemical color sensors, would it make it more digital friendly? and perhapes claim back the ground? If I understand what you are suggesting, then placing a Bayer pattern in front of film should allow an emulation of direct digital imaging. Another test might be to place a micro lens array in front of the film. My guess is that either method, or both, would degrade the film image. Ciao! Gordon Moat Alliance Graphique Studio http://www.allgstudio.com |
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Einton Newstein wrote:
Why a Canon DSLR of only 3k x 2k @ 32-bit RGB out performs a film scanned to the same resolution and same color depth? The grain factor? Huh? In noise I agree, but in detail I do not. -- e-meil: there's no such thing as a FreeLunch. |
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