Julian said:
IIRC, Oly said that the lenses were designed to support a sensor of 11 -
12 Mp, which is the intended design limit of the system.
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Not sure if Oly has said it but Kodak certainly has. See:
<http://www.kodak.com/global/en/digital/ccd/sensorsMain.jhtml>
and click on "New 4/3-type standard" in the upper right hand corner.
That will take you to a PDF with a chart that clearly shows the
resolution design limit for 4/3 lenses at 12 megapixels. While it
doesn't say so, the curve extending from the current 5 megapixel sensor
up to 12 megapixels I'm sure is intended to show the future development
path for the 4/3 system.
Curiously, this curve has some discreet points plotted on it at 3, 4, 5,
6, 8 and 10 mp. After the 10 mp point the curve is dashed instead of
solid. I can easily read design points into this that says the E-2 is 6
mp, the E-3 8 mp and the E-4 is 10 mp. And like the OM line, there
won't be an E-5 with 12 mp which would stretch the theoretical limits of
the lenses.
The chart also clearly shows that consumer grade DC's already have pixel
sizes smaller than a 4/3 sensor with 12 megapixels. Therefore, the
technical challenge isn't making small enough pixels but small enough
pixels that also satisfy all the other system contraints.
Chuck Norcutt
Woburn, Massachusetts, USA
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