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Old Sep 30, 2003, 7:30 PM   #1
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Default Noice level

I have read a lot about the operating noice level of the present day digicam.

I cannot understand how does that affect the quality of the picture ? Even Sony had presented a comparative picture study in its brochure on their DSC V1, claiming that the "noice level" had resulted in different photographic results !!!

Can any one please elaborate on this ?

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Old Oct 1, 2003, 12:42 AM   #2
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Look at this thread:


10 posts down it it, are several examples of the sky in pictures taken at higher and higher ISO levels. As you can see, there is a loss of detail and a more speckled pattern in the picture. That isn't real detail in the sky, that is noise.

Does that help? Hopefully a picture is worth a 1,000 words.

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Old Oct 8, 2003, 3:26 PM   #3
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Noise from the camera is when you "tune up" the sensitivity of the chip that recieves the light. For instance, you do this when there's insufficient light and you still want to use short shutter speed.

Now, here's the trick; you don't get anything just for free, do you? By tunig up the sensitivity of the CCD (the chip) you will notice random spots of green, blue or red in the picture. It's the same thing as using fast film (high ISO) when shooting ordinary film; if you use a high-ISO film, the resulting picture could be "grainy".

So, the term noise doesn't apply to sound... But perhaps i got you wrong? Anyway, hope this helps...
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