I cannot believe you start another thread just for that.
You still fail to answer this question - how a blurry 36mp photo looks and prints better than a tack sharp 22mp photo?
because
for the same camera movement and
same viewing conditions the 36MP picture
will always be less blurry than the 22MP one. So, your question is irrelevant. I could just as well ask
how a blurry 22mp photo looks and prints better than a tack sharp 36mp photo? , it has as much relevance to anything. fact is, you use the same technique with the 5DIII and D800, the D800 will produce more resolution. If your technique is very poor, not much, but still more.
I don't think you understand what I said. I don't dispute D800 has more resolution than 5D3, of course. However as DPR said you need faster shutter in order to fully leverage 36mp resolution.
Just like you need a higher shutter speed to 'leverage' L lenses.
For example under a non-ideal light, I can get a sharp 5D3 photo at ISO 200 at 1/20 hand-held while you likely must shoot under ISO 360 at 1/30 (just for an example may not exact number) in order to get similar sharpness when both viewed at 100% cropped.
There is the thing, who is interested in 100% crop? Mostly, the size of output people choose for their photos is pretty much unrelated to the sampling rate of the camera. It never has been, with the caveat, that if teh sampling rate is too low, you might not feel the quality is good enough to print large.
In another words, you need a better technique in order to achieve potential 36mp resolution. If you also shoot D800 in that scenario with ISO 200 at 1/20 you have higher chance to get a blurry photo.
Only if you choose to view them at different sizes. If you were to choose to view the 5DIII 28% bigger than the D800, that would look more blurry.
Now assuming we both shoot ISO 200 at 1/20, I have sharp 5D3 photo while you have blurry D800 photo when both viewed at 100% cropped. Can you still say your blurry D800 photo is better than my sharp 5D3 photo, by either downsampling to 22mp or upsampling to 36mp? That's exactly what DPR means,
I will say my D800 picture is better if it looks sharper viewed the same size.
Can the D800 make good on its pixel count and provide a level of fine detail that trumps its DSLR rivals? It can. We emphasize the word can, because if you're truly after 36MP performance, be prepared to do some work. Flawless technique, fast shutter speeds and top-shelf equipment (particularly lenses and a tripod) along with a low ISO are requirements not options.
You need even more technique to leverage 80mp Mamiya MF camera.
So what this better technique for high pixel camera means? It means in order to have the best possible quality when print big such as 60" from D800, you really need to shoot under faster shutter or on tripod with the nice lens, at the base ISO and optimized F number (such as 5.6). Otherwise you probably waste D800 potential if you only print to 30x20". How many landscape photog using 40-80mp MP camera will shoot in hand-held?
But you could choose not to 'leverage'. The advantage of the D800 is that it gives you the same or better image quality when used in the same way as the 5DIII (and that includes
every aspect of image quality) and considerably more
when you choose to take the effort for precision technique. In addition you get the added advantage of more than 2 stops more DR at base ISO (and I frequently see shadow noise at base ISO on the 5D), nearly ISOless charcteristic and usable auto-ISO. All in all it's a more flexible camera, the only operational downside for still photography is 1 FPS less, but I've used my camera in continuous drive mode precisely twice, so personally, I can live with that.
--
Bob