I guess if all you look at is the megapixel count, the two cameras aren't all that different. And for a lot of applications the d800 is going to be sufficient. The tests certainly show that technical differences are small.
But as Bill points out, there will be differences that go beyond counting bits. The sensor on the 645 is 33x44mm. This is larger than the 35mm full frame sensors in many DSLRs. That changes a few things. The size of the viewfinder image, the relationships among lens focal length, depth of field, angle of view, etc. Different sizes of media format usually bring a difference in experience other than numbers of pixels and information quality. Whether these differences are important to you, or worth the difference in price become personal decisions. gs George Sinos -------------------- [email protected] www.georgesphotos.net plus.georgesinos.com On Fri, Dec 14, 2012 at 8:38 AM, William Robb <[email protected]> wrote: > On 13/12/2012 11:25 PM, Tom C wrote: >>> >>> From: William Robb <[email protected]> >>> >>> On 13/12/2012 11:57 AM, J.C. O'Connell wrote: >>>> >>>> And presto, you have a $10K obsolete piece o crap original 645D. >>>> >>>> >>> How is it obsolete? I don't think they stop working when another camera >>> comes out, and when the 645D was introduced, it was rather a game >>> changer. >>> I have spent some time with the 645D. It will take more than a 36mp >>> small format camera to make the 645D obsolete. >>> But, one would have to use both to know this. >>> I have. >>> Have you? >> >> >> Not intending to butt heads with you Bill. It's obviously not >> obsolete, but it loses a degree of relevance. If one can arguably get >> a camera that's quite close in resolution and other performance >> factors, with a huge lens catalog to choose from. for about 1/3 the >> price... >> >> I looked yesterday and cannot remember the figures, but the DxO >> scores were fairly close between the aforementioned bodies (one troll >> to another). >> >> Tom C, >> > > I guess viewfinders don't matter any more. The 645 is a joy to look through, > the D800 has, by comparison, a dinky little viewfinder with dancing lights > flashing seemingly at random. I realize this is a small thing that probably > won't matter to many people, but the 645 is a much nicer camera to work > with. > That used to mean something. It seems these days, all that matters is the > number of megapixels. > > -- > > William Robb > > -- > 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.
