Yeah, I was also thinking bout the price difference.  $3K vs. $10K is
a really big difference. especially when the Nikon body comes with
Nikon's lens selection.

On Tue, Feb 7, 2012 at 6:47 PM, Tom C <[email protected]> wrote:
>> 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.
>
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