> Let's say that due to optics, more than 80 lines/mm is pointless. =A0That=
 is
> 160 pix/mm, or 5760 x 3840 =3D 22 Mpix for a 36mm x 24mm "35mm" frame. =
=A0That
> would also be the resolution for each color. =A0We're not there yet. =A0M=
aybe in
> another decade the practical resolution limit will be hit for professiona=
l
> 35mm cameras and it will only be about sensitivity, dynamic range, and
> noise.

Understood, but lenses really are already a limiting factor for top
photographers, and a significant factor for the kenner of the hoi
polloi.
There are reasons why people can and do sell. $1000, $3000 and $6000
lenses. Not quite so much reason why they do and can sell $10,000,
$30,000 and more lenses (except  in > 35mm formats where anything
goes)

Getting a GOOD result at all apertures and focal lengrths is MUCH
harder and dearer on a full frame 35mm than on an APSC half frame.

Once you get into the world of MTF (modulation transfer function)
(wot's lenses got to do with modulation then ???)  and its kin you are
in a brave new (or very old world) where people will pore over results
interminably.

MTF Explained
Do I really need to know this stuff
THEIR titles ! :-)
Excellent site BTW

        http://www.luminous-landscape.com/tutorials/understanding-series/un=
derstanding-mtf.shtml

Contrast and MTF basics

    http://www.luminous-landscape.com/tutorials/understanding-series/lens-c=
ontrast.shtml

MTF curves
Aghhhhhhhhhhh!

            http://www.normankoren.com/Tutorials/MTF.html

And again


http://www.cambridgeincolour.com/tutorials/lens-quality-mtf-resolution.htm

How to choose the lens you need using MTF charts.
Walker!

          http://fotogenetic.dearingfilm.com/how_to_choose_a_lens.html

Messieur Rockwell.
(Many  roads lead via)

            http://www.kenrockwell.com/tech/mtf.htm

http://www.photodo.com/

http://www.quickmtf.com/


Interesting but dangerous table

              http://www.waynesthisandthat.com/bestcameralensbrand.html

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