(Simplified)
It's not only how many pixels, but also how small they are and how insulated they are from the general electronic hum that we live in.
The pixel sensor or, really, the "Photosite" is a light sensitive dot. But it is also an antenna which picks up the elecronic hum or noise. bigger dots are more light-sensitive Because the signal is weak from a small photosite, it requires more amplification but the noise also gets amplified
It's just like an audio system. If you have a system where a weak signal is being turned into something your ears can hear. If the signal is crackly and noisy then putting it through a bigger amplifier will just make LOUDER noise and it will probably more difficult to hear.
herschel
Herschel Mair
Head of the Department of Photography,
Head of the Department of Photography,
Higher College of Technology
Muscat
Sultanate of Oman
Muscat
Sultanate of Oman
Adobe Certified instructor
+ (986) 99899 673
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