Just a few of thoughts.
There was lots of discussion on Canon forums and then later on Nikon
forums pointing out that high count sensors reveal lens limitations.
I doubt that is the case here because that is a recent design.
All the camera makers have experimented with the thickness of the
high pass filter trying to find the right balance between sharpness
and the dreaded moire pattern. Maybe Olympus opted in this case to
make it more fool proof.
I don't know who made the sensor for the 510, but I suspect it is
Panasonic. My impression is that Kodak makes a sensor that produces a
crisper image.
This part is the no speculation part. Pixel pitch is very important
in determining the onset of what is being called sensor diffraction.
The smaller the pixel gets the onset of diffraction occurs at larger
lens openings. The E-1 has a pixel pitch of 6.7 microns. A 12MP
Nikon D2X has a pixel pitch of 5.5 microns and its image has already
begun to noticeably soften at F11. A 10MP Nikon D200 has a pixel
pitch of 6.1 microns and gets an extra half stop over the D2X before
it begins to soften. Pixel pitch of the 10MP 4/3 sensors which are
physically smaller is 4.7 microns. The diffraction is going to be
worse than any of those examples. Try making a comparison at F8 and
the situation should improve considerably.
Winsor
Long Beach, California, USA
On / June 22, 2007 CE, at 2:12 PM, Bob Whitmire wrote:
>
>
> You have to figure if you're using the 14-54 at 41mm, ISO 100 at f/11
> at 1/80 with IS on, you ought to get a damned sharp picture with
> plenty of DOF. Unfortunately, that's not the case. I can work it so
> it appears nearly acceptable, but I know it isn't close to the kind
> of sharpness I would expect from my E-1.
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