Now I'm confused. Rob keeps telling us that the 6.1 megapixel sensor can't come close to supporting the resolution of high-end Pentax lenses. Now I hear that a ten megapixel sensor will exceed the capability of the lenses. Is the threshold level somewhere in between? All I know is the *istD delivers great results, and I would guess that a ten megapixel camera will deliver even better results.
Paul
On Feb 5, 2006, at 4:30 PM, Godfrey DiGiorgi wrote:


On Feb 5, 2006, at 12:21 PM, Lucas Rijnders wrote:

If the Pentax lenses I have now work well on the Pentax *ist DS (and they do), I cannot imagine why they would work poorly on an Olympus 4/3 sensor.

I gathered, but it is hearsay from memory, that most OM lenses are simply not sharp enough on the 4/3's sensor. It is both smaller and higher resolution. It might not be true: that's why I said to test for yourself :o)

I consider the Olympus OM system lenses to be comparable to same-era Pentax lenses of like focal lengths, at least with respect to resolution and contrast, rectilinear correction. If it were true that the OM lenses aren't sharp enough for the E system sensor, it's likely true that the Pentax lenses aren't either.

Interesting conjecture:
The E-330 4/3 format sensor has approximately 174.2 pixels per mm. There's been a lot of talk here and elsewhere about wanting an uprated D model with 8-10Mpixel. If you take the same pixel density and put it on the Sony-dimension chip it comes out to 4094 x 2735 pixels, or 10.6 Mpixel.

So if Pentax releases a 10Mpixel version of the *ist D, will the Pentax lenses be adequate to deliver the kind of performance that its sensor can achieve?

Seems like a case of "damned if you don't but damned if you do" to me. ;-)

Godfrey


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