the sensor NEEDS to outresolve the lens significantly so that diagonal
lines dont have any jaggies
On 9/11/2014 2:09 PM, Darren Addy wrote:
You *want* your sensor to "out-resolve the lens", people. Don't say it
like it's a bad thing.
I think that people are forgetting that if the sensor DOES NOT
out-resolve the lens you theoretically have moire. This is why AA
filters were necessary in the past, but as pixel pitch shrinks it
becomes unnecessary. It is not that the problem of moire has
disappeared, it is that the sensor "over samples" the image and
eliminates most moire. This isn't a function of sensor size, but
photosite size, which is why the Q can get away with no AA filter.
This page is a nice demo (albeit at lower MP sizes than we are talking
about): http://www.talkemount.com/showthread.php?t=387
You get the picture. (Also take note of his "Conclusions") This
example takes big jumps (1MP, 4MP, 16MP) so Luka's contention may be a
good one. But put an 85mm Zeiss Otus at f/2.8 in front of the 36 MP
and 46 MP sensor and I'd be interested in giving it a try.
:)
The point is that as sensors get better you have more "headroom" to
improve you photography by *taking advantage* of better lenses. But
there will probably be a point (particularly if you print large) at
which you start to realize that some of your lenses are no longer
passing muster.
On Thu, Sep 11, 2014 at 12:28 PM, Mark Roberts
<[email protected]> wrote:
Luka Knezevic-Strika <[email protected]> wrote:
i bet that no one here could tell a difference between a 2x3 meter
print from a 36mpix sensor and the one from a 48mpix sensor. even at
close range.
i would actually bet.
And if the sensor's outresolving the lens, there won't BE any
difference.
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