> On 2/7/2012 3:21 PM, Mark Roberts wrote: >> "P. J. Alling"<[email protected]> wrote: >> >>> I hope that Pentax/Ricoh has an updated 645D with higher >>> sensor resolution waiting in the wings. 30mp is getting might close to >>> the 40mp sensor in low end MF DSLRs. >> I think potential buyers in the medium format digital market are >> generally far too experienced and knowledgeable to count pixels and >> think this is a substitute for MF digital - sensor size matters. (Buty >> I wouldn't be surprised if an upgrade to the 645D came before long.) >> >> > Be that as it may, but the 44mmx33mm sensor is only 1.6 times the area > of the 36mmx24mm sensor.with 1.3 times the pixels. Assuming optimize > pixel sizes and spacing for both brings us down to pretty much a pixel > count comparison. > > The D800 can produce a 25 1/2 in x 16 1/3 in print at 300dpi, the 645D > can produce a 24 1/4 in x 18 1/8 in print at 300 dpi. > > There seems to be a rough parity here. >
I haven't verified your math PJ... :) but would point out that a $3000 (D800) or $3300 (D800E) camera is significantly more affordable than the 645D ($10,000) or the Nikon D3X ($8000). I was considering a 24MP D3X at one time, but a $5000 or so price break + 12MP more definitely makes the cash outlay easier to imagine. We've also seen an overall increase in noise performance the past few years despite high pixel counts. Recall that numerous pros were switching from MF film cameras to the 20MP+ Canon FF models several years back. Tom C. -- 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.
