Sony Ericsson / Sony : Technical : Megapixels on mobile phones. Marketing scam?
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On 2007-07-04 14:38:19, BBS wrote:
You guys forgot one of the most important parametes - lens. Due to the miniature size of the lens in phones there is a limit for colleting light reflected from the target. Therefore, more pixels donen't mean automatically better picture.
remember the old type nokia fones? they are big right? but still looks stylish and it constrast w/ the phone...i think it is the answer
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Posted: 2007-07-04 14:50:29
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It's not a scam, not even when you compare to regular digital cameras like the Canon ixus series.
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Posted: 2007-07-04 15:20:00
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I wouldn't call it scam, as with increase in MP, the quality is also increasing. N95>N93
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Posted: 2007-07-04 23:14:28
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Well, it is harder to put the same megapixel sensor in a phone, than in a regular size camera. So the increase of pixels does improve the quality, but not that much as it does in a regular camera. After all, we are using phones, not professional digital cameras.
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Posted: 2007-07-04 23:33:50
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Not quite a scam, but definitely far, far over-hyped.
The CCD in a cell phone is bound to be smaller than that of a conventional digi-cam, regardless of it being a compact or not. Small sensor + More mega pixels = more picture noise, as less light comes onto each pixel, and longer exposure, higher ISO must be used in order to provide you with fully-exposed pictures.
An example of this, compare a D-SLR to a standard digital compact. Less noisy better pictures, even with lower MP sensors.
The tiny lens in a cell phone is also part of the equation, though less so than the actual sensor.
Hope that helps anyone confused
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Posted: 2007-07-05 00:34:38
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On 2007-07-05 00:34:38, dumbrella wrote:
and longer exposure, higher ISO must be used in order to provide you with fully-exposed pictures.
Actually lower ISO values! Higher ISO = higher amplification of the sensor output = more noise. To get less noise use lower ISO values which in turn require longer exposure times.
On 2007-07-05 00:34:38, dumbrella wrote:
An example of this, compare a D-SLR to a standard digital compact. Less noisy better pictures, even with lower MP sensors.
The Canon 300D has whopper of a sensor (22.7x15.1mm) and with a firmware hack it can take ISO values up to 3200 and still give less noise than a camera phone at ISO 200!
Read
this and
this article for more.
_________________
The Tree of Life is Self-Pruning. -- DarwinAwards.com
[ This Message was edited by: AbuBasim on 2007-07-05 13:54 ]
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Posted: 2007-07-05 07:51:27
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You can also look at the DPI (dots per inch) of the pictures, my w810 @ 2mp has 72dpi and my old canon digicam has 180dpi.
I'd be curious about the different dpi between phone cam models
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Posted: 2007-07-13 06:21:08
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On 2007-07-13 06:21:08, massgeorge wrote:
You can also look at the DPI (dots per inch) of the pictures, my w810 @ 2mp has 72dpi and my old canon digicam has 180dpi.
I'd be curious about the different dpi between phone cam models
Umm what? DPI is a PRINTER attribute, not a picture attribute! It stands for Dots Per Inch. Any picture can be printed at any DPI as long as the printer supports it! Your 2MP picture for the w810 can be printed at 100,000 DPI if you have a 100,000 DPI printer.
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Posted: 2007-07-31 04:03:47
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Yes, I guess it's NOT a scam . . . if so, professional-people who are into photography would have SUED them by now
!
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Posted: 2007-07-31 04:16:43
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I've said it once and I'll say it again..... anything above 3.0 MP in a cam phone makes no sense, as it will not be that much different than the current 2.0MP.
At least for now. We'll see what the near future brings. until then...... the difference is not substantial at all.
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Posted: 2007-07-31 04:36:15
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