There are many reasons. At least a couple of them has to do with the optics in the 645 system. The sensor is not alone. :-)
For example at Svalbard I brought my K-7 with a DA*300/4 in addition to the 645 system, and 100% comparisons of shots with the DA*300/4 and the 645A*300/4 showed me there's more information in the 645D recording at the pixel level. I believe the sensor design (eg. lack of anti-aliasing filter) contributes to the perceived sharpness too. Either way, when I crop out 1000x1000 pixels from a 645D file and a K-7 file, obtained with equivalent focal lengths, I'm left with more detail in the 645D shot. And I used to think the DA*300/4 was pretty good. I do not own the K-5. Jostein 2011/4/21 Tim Bray <[email protected]>: > Really, Jostein? I was also pretty convinced that the main reason one > would get a 645D was for large-format prints. I've seen your > pictures and they're incredibly beautiful, but for on-screen > presentation, I don't think I saw anything that couldn't be captured > with a K-5. I'd like to hear your opinion as someone with hands-on > experience. -Tim > > On Thu, Apr 21, 2011 at 8:00 AM, AlunFoto <[email protected]> wrote: >> 2011/4/21 Darren Addy <[email protected]>: >>> I suspect that, like the film cameras of old, >>> you don't really see a big advantage for the 645D until you make a >>> print of a certain size, when the 645D's 40MP images shine over a >>> lesser MP image. >> >> I suspect your suspicion to be misguided. Based on humble experience. >> >> Jostein >> >> -- >> http://www.alunfoto.no/galleri/ >> http://alunfoto.blogspot.com >> >> -- >> 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. >> > > -- > 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. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- 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.
