Originally posted by clackers "The print graph shows us that when the 810 uses the full frame it will outperform the K5. Not because it has bigger pixels (which it doesn't), but because it has a bigger total sensor area."
Ask yourself: Why would this not be true in the screen graph as well?
Take a few minutes and try to see Gimbal and Fogel's point of view. Trying to understand what they're saying will be worth far more than adamantly declaring them to be wrong or somehow unable to understand.
The d810 and the k5 have the same size pixels (or close enough
). The d810 has a larger sensor. Therefore, the d810 has more pixels, and due to downsampling will 'win' with regards to noise when it comes time to compare resulting images at the same print size. Bigger sensor => more pixels => less noise for a given print size.
Yes, it is true that a larger sensor
does not guarantee more pixels, everyone knows this. A larger sensor does imply an increase of
either pixel size
or pixel count
(or both). One could go down, but then the other one goes up even more. The net result is an improvement in noise when comparing the pictures at the same print size (I'm assuming 'all other things' are equal, so keep those canon sensors away from our sony sensors for the moment, especially those 10 year old ones
). With this view, the statement "a larger sensor means less noise in the final picture at the same iso" is a pretty reasonable thing to say (with the caveat that the smaller sensor might be 'good enough' that it's effectively noise-free to human eyeballs at a given print size).
I don't want to put words in your mouth so please stomp all over this if I'm misrepresenting you, but I think you are opposed to this phrasing since the larger sensor area isn't the direct mechanism that's helping out to noise? Since a larger sensor will necessarily impact two things that help with noise for a net improvement, I think this is going to get you into repeated misunderstandings.
This was probably a waste of time, but I'd otherwise be waisting my time eating ice cream sandwiches trying to become a full framed photographer, so I figured it was worth a stab