R10dreamer Posted August 9, 2009 Share #1 Posted August 9, 2009 Advertisement (gone after registration) Found this article/discussion today. Posting it here for those that are interested. Physical Limits in Digital Photography Link to post Share on other sites More sharing options...
Advertisement Posted August 9, 2009 Posted August 9, 2009 Hi R10dreamer, Take a look here Pixel Limits - this may interest some of you.. I'm sure you'll find what you were looking for!
marknorton Posted August 10, 2009 Share #2 Posted August 10, 2009 Thanks for pointing us at the article, very interesting. Link to post Share on other sites More sharing options...
spylaw4 Posted August 10, 2009 Share #3 Posted August 10, 2009 Fascinating article. Link to post Share on other sites More sharing options...
stunsworth Posted August 10, 2009 Share #4 Posted August 10, 2009 So where does that leave the camera manufacturers _if_ the general public takes the type of information in the article on board? Once you reach the limits of resolution and noise where do you go? How do you persuade people to buy new kit? The mention of 6 photons to a pixel came as a surprise. How do Canon and Nikon manage to provide hyper fast ISOs? In camera noise reduction? Link to post Share on other sites More sharing options...
wildlightphoto Posted August 10, 2009 Share #5 Posted August 10, 2009 Once you reach the limits of resolution and noise where do you go? What this article says to me is that higher resolution requires a bigger sensor with big pixels and lenses near optimum at full aperture. S2, anyone? Link to post Share on other sites More sharing options...
sdai Posted August 10, 2009 Share #6 Posted August 10, 2009 If that's Nikon, Canon et al have to do obviously, the niche Leica has just created for themselves will soon disappear. Link to post Share on other sites More sharing options...
mjh Posted August 10, 2009 Share #7 Posted August 10, 2009 Advertisement (gone after registration) The mention of 6 photons to a pixel came as a surprise. I cannot say I was surprised. Shot noise is well-known to be one of the main factors contributing to noise in digital photography (another important factor being quantization noise). But then, 6 photons is the worst-case figure for the darkest shadows. How do Canon and Nikon manage to provide hyper fast ISOs? In camera noise reduction? Sure. There is very little variation between sensors from different vendors when it comes to noise, be it sensors from Canon, Kodak, Nikon/Sony, Panasonic, or Samsung. The not-so-secret formula is: bigger sensor pixels create less noise than smaller sensor pixels. It is as simple as that. Apart from pixel size, there is some room for optimizations regarding the A/D converter – more bits per sample do help, as do longer sampling times (increasing the number of read-out channels is generally a good idea as you can reduce the read-out speed and still achieve higher burst-mode speeds). Everything else you see is the result of in-camera noise reduction. Link to post Share on other sites More sharing options...
rick_dykstra Posted August 11, 2009 Share #8 Posted August 11, 2009 Is the S2 AA filter free like the DMR? Link to post Share on other sites More sharing options...
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