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p.4 #12 · p.4 #12 · D850 still takes a better picture than z8/9, change my mind. | |
philip_pj wrote:
I'm (temporarily) back from self-imposed Nikon forum exile to provide some background on this fascinating yet little-discussed topic. Here are some links that might add to the shared awareness of the issue:
https://www.dpreview.com/forums/thread/4317144
https://www.dpreview.com/forums/thread/4312124
"The Fuji X-T3 seems to have let the cat out of the bag by saying that 2 million pixels are dedicated to autofocus. That is over 7% of the sensor area! It isn't the end of the world, but that is quite substantial. And quite a lot of pixels for the camera to be guessing at."
From Bill Claff:
"For the Nikon Z 7 I have determined that (with the exception of some at the top and bottom) every 12th row is PDAF capable. (see this post)
My guess is that each AF point is 25 rows of 240 pixels or 6,000 pixels.
There are 29x17=493 AF points so the total AF pixels might be about 2,958,000
Remember, these are just (informed) guesses."
As a personal wish, I've always wanted a fully intact sensor for manual focus only use, with no autofocus pollution. More artifice prevailed, however, and once the resolution/DR wars were over and the bird/action crazes arose, AF became King. You shouldn't have to buy a Leica M, obviously....Show more →
Nice to see you back in the Nikon forums Phillip. Your thoughtful and knowledgeable posts have always added value.
This has been my experience as well. AF and stacked sensor architecture each have an IQ cost associated with them. The M11 sensor has the best IQ in DR and detail of any 35mm FF format sensor I have ever experienced. The leica colors and files are also top, but of course this part is very subjective and personal. The quality of current generation Leica lenses especially the APO line take full advantage of this. However being MF only, the use cases are less broad than the best AF systems. As always there are compromises to be made.
My guess is that the Z7III will use a sensor very similar to the M11, and it will be the new IQ leader in the Nikon line of cameras.
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