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 p.1 #13 · Small sensor=noise? Really? | |
Glenn01 wrote:
OK, I see it's time to set all you guys and girls straight on this noise issue  .
There is absolutely a definite correlation between noise and sensor size, but most people have it backwards! The LARGER the sensor, the GREATER the noise! Think about it, a smaller sensor requires a smaller shutter. In fact, it may even be that the chamber leading to the shutter curtain is a bit smaller. Thus, you have a smaller object flinging open and closed, and maybe even a smaller mirror slapping up and then crashing back down onto its mounts. Now, if all that action of objects hitting stops is smaller, it's going to have less force. Less force causes less movement of air as a result of the impact, and as we all know, sudden air movement is what we refer to as sound, or in this case, "NOISE". The bigger sensors have much larger shutter curtains and mirrors, and thus will have much more impact when they hit the stops and as such will cause a LOT more vibration of the air and thus cause a LOT more NOISE! See what I'm getting at (if you do, you need help worse than I do  )? Ergo, the Canon 1DS Mk II V2.952 sub-V3.5 has a bigger sensor and thus makes MORE noise than the DX2 or D2H (V anything), and thus a much MORE noisier than the Nikons. Now, I have to admit, I have a friend who shoots Canon (hey, us Nikon people are a charitable group after all) and I listened to his shutter opening and closing and frankly had a hard time telling if his camera made more noise than my D2X, but then I'm deaf in my left ear, so maybe that was it. However, we were both shooting the same thing here in S. Ontario last week and my camera didn't cause any trouble, but as soon as he triggered his shutter, it caused the whole herd of centipedes to stampede for cover (talk about noise!!!  ), so who knows.
There you go. I hope that once and for all settles the "noise" issue. If you have a problem with noise, wear ear muffs. Now, if you'll excuse me, it's time for my medication again.
Glenn (<-- but I'll deny it to anyone who asks) ...Show more →
The correlation is that larger sensors generally have larger photosites. It is a known fact, that all things being equal, larger photosites will produce less noise.
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