On Tue, Nov 9, 2010 at 5:58 PM, Jaume Lahuerta <[email protected]> wrote: > > What I meant Ralf is that the K20D sensor was praised and then almost the same > sensor in the K-7 was terrible...(and this didn't happen with the 6mpix sensor > even when it was already ageing in the K100D super) > > Regards, > Jaume
When the K20D came out the sensor appeared to be a decent performer, the IQ of the K20D was competitive. I remember that Paul's K20D ISO 6400 shots were not that far behind my D300 shots at the same time in terms of noise. Experience showed however that the reality was the K20D sensor was behind the ball and the K20D processing chain was saving it. This became far more visible as newer cameras based on the variants of the D300 sensor came out and pushed performance well beyond what the K20D could as well as the appearance of the Samsung NX bodies to show what the K20D sensor looked like without Pentax's excellent PRIME engine. Note the K-x uses a variant of the same basic sensor as the D300 but has a 1-2 stop high ISO advantage. The arrival of the K-7 showed no real improvement in IQ from the sensor and processing chain and the arrival of the K-x showed just what the PRIME II engine could do with a competitive sensor which is what leads to the K-7 sensor getting bagged on where the K20D didn't. A lot changes in the 16 or so months between the K20D and the K-7. Note that Sony got this even worse, having finally replaced the last of its 10MP CCD cameras (with the K10D/K20/K-m sensor) this year, albeit with a 14MP CCD sensor that makes the K-7's sensor look good at ISO's over 400. -Adam -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
