unfocused
Photos/Photo Book Reviews: www.thecuriouseye.com
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First of all, I appreciate your patience and willingness to engage on this site. Especially because there seem to be a number of people who have already come to their own opinions and don't want to be confused by facts.
I guess that on a tech-geek oriented site it's understandable that discussions will devolve into pointless but rabid debates over insignificant differences. Like academia, the arguments are so bitter here because the stakes are so small.
I've made my opinion known. I want review sites to tell me what they don't like about a product. I can make a judgment for myself if that criteria is relevant for me personally, but if no one writes about the downsides, then it's impossible to make intelligent choices. Instead of focusing on a couple of small points, I prefer to look at the overall review and I would say that DPR tends to have very thorough reviews. If people feel there is some bias in the review (which is not necessarily a bad thing, but rather just a fact of life) then it's a simple matter to take that into account when reading the reviews (or if people are offended by the reviews, no one is holding a gun to anyone's head forcing them to read the reviews).
For those who want to read only positive things about Canon, there is a site they can go to: www.canonusa.com
rishi_sanyal said:unfocused said:...With these sensors, the idea is that you can set your shutter speed and aperture ...
...Now, that does sound brilliant and very valuable....
...I'd like to see some comparisons...to see if the promised advantages really exist or not
Almost. It's a common misconception that it's the ISO amplification that adds noise, but the reverse is true: ISO amplification actually helps reduce the noise that might result if you push in post. It's the decreased light levels available to the sensor when you deprive it of light (in low light, using high shutter speeds, e.g.) that lead to the higher noise levels, because of shot noise (http://bit.ly/shotnoise)...
...So, in the end, it's about saving highlights under high ISO conditions. And the ability to do so all comes down ISO-invariance...
The information you're looking for - the noise cost to doing this amplification in-post vs. in-camera, is exactly what the ISO-invariance test I implemented shortly after joining DPReview is designed to test.
...understand that at this point, we're talking 1/3EV or less increases in performance at best. And after a certain point, there won't be any more to gain from decreasing noise, because we already have such low levels of noise to begin with...
First of all, I appreciate your patience and willingness to engage on this site. Especially because there seem to be a number of people who have already come to their own opinions and don't want to be confused by facts.
I guess that on a tech-geek oriented site it's understandable that discussions will devolve into pointless but rabid debates over insignificant differences. Like academia, the arguments are so bitter here because the stakes are so small.
I've made my opinion known. I want review sites to tell me what they don't like about a product. I can make a judgment for myself if that criteria is relevant for me personally, but if no one writes about the downsides, then it's impossible to make intelligent choices. Instead of focusing on a couple of small points, I prefer to look at the overall review and I would say that DPR tends to have very thorough reviews. If people feel there is some bias in the review (which is not necessarily a bad thing, but rather just a fact of life) then it's a simple matter to take that into account when reading the reviews (or if people are offended by the reviews, no one is holding a gun to anyone's head forcing them to read the reviews).
For those who want to read only positive things about Canon, there is a site they can go to: www.canonusa.com
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