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FULL quality in JPG with no noise reduction

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Offline RaduP

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Re: FULL quality in JPG with no noise reduction
« Reply #10 on: 18 / June / 2008, 21:24:39 »
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What do you mean it has a smaller sensor? All the Canon NON DSLR cameras (with the excaption of the G series) have a 1cm sensor (which is much less than 1CM when it comes to the effective sensor size).

Re: FULL quality in JPG with no noise reduction
« Reply #11 on: 19 / June / 2008, 04:47:04 »
No, all P&S do NOT have the same sensor size. Some, like the A6** serie have a 1/1,8" diagonal sensor (except the A650 which has a 1/1,7", a tad bigger). The same sensor size is used in the G serie. But the A5** and A7** use a smaller sensor, i.e. a 1/2,5" diagonal. Indeed, it may play a role on noise reduction. But you must also take into account the number of pixels squeezed on that small surface. In fact, what defines the signal/noise ratio (to make a long story short) is the ratio between number of pixels and sensor surface. And when the signal/noise ratio is low, the anti-noise processing has to make some compromises: keep noise and details, or reduce noise...and details. And I must say that Canon is quite good at that game, compared to other brands!
« Last Edit: 19 / June / 2008, 04:49:03 by A630Lover »

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Offline RaduP

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Re: FULL quality in JPG with no noise reduction
« Reply #12 on: 21 / June / 2008, 22:19:08 »
That sucks, I wish I knew that before I got my camera :)

 

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