From: Bruce on
On Wed, 10 Mar 2010 01:01:57 -0500, "stephe_k(a)yahoo.com"
<stephe_k(a)yahoo.com> wrote:
>RichA wrote:
>> Talk about crushing the price barrier in the medium format!!
>>
>> http://www.dpreview.com/news/1003/10031002pentax645d.asp
>>
>
>
>But is a crop camera 44 x 33 mm vs 56 x 42 mm of full 645 format. Not a
>huge increase over 36x24mm for the price and what you lose on wide angle
>$$$ MF glass etc.


The sensor is a 1.3X crop from 645 film.

Wide angles are a problem. The standard lens for this format is the
new SMC Pentax-D FA 645 55mm F2.8. Shorter focal length lenses will
be disproportionately expensive, as they always have been in medium
format. After all, a 50mm is the most popular wide angle lens for
that format (and the cheapest) but it would be pointless on a 645D.

The Pentax 645D is up against strong competition from the Hasselblad
H4D-40 which uses the same Kodak sensor. The H Series has a well
established and mostly satisfied user base, but the H4D-40 costs
$19,995 against the $9400 Japanese market price for the Pentax.

For the Pentax 645D to succeed, it will have to stay competitively
priced against the Hasselblad. $9995 would be a good start.

Both these cameras will wipe the floor with the Leica S2. The Leica
offers 37.5 MP on a slightly smaller 30 x 45mm Kodak sensor and is
already struggling to establish itself in the market, largely due to
its exceptionally high price of $22,995. Ouch! There is also the
problem of the 3:2 aspect ratio which is not popular in its target
market.

I predict that the Leica will fail, because sales to Leica diehards
will be nowhere near sufficient to make the S2 line profitable.

From: MikeWhy on
"Alfred Molon" <alfred_molon(a)yahoo.com> wrote in message
news:MPG.2601a0f33552b65a98c257(a)news.supernews.com...
> In article <hn7ckt$g4d$1(a)news.albasani.net>, stephe_k(a)yahoo.com says...
>
>> But is a crop camera 44 x 33 mm vs 56 x 42 mm of full 645 format. Not a
>> huge increase over 36x24mm for the price and what you lose on wide angle
>> $$$ MF glass etc.
>
> 68% more area, that is a significant increase. It's also nice to have
> 40MP resolution - no DSLR comes close.
>
> But what turns me off is the weight - 1480g body only, with a lens it
> will be > 2Kg. Not to mention that huge&heavy mirror slapping around.
>
> Why can't a make such a large sensor camera *without* the mirror? The
> body would be much more compact and lightweight. At 2Kg it's not really
> suited as a camera to carry around with you.

Think how much fun these discussions will be when "crop" 4x5 scanning backs
break the $10k mark. Big versus tiny is relative. For many of us, 35mm is
hardly anywhere near "big". For that matter, 645 is tiny compared to even
6x9, let alone 4x5. No mirror box or complicated focal plane shutter in that
hawse. 5 lbs is a lightweight. ;)


From: Bruce on
On Wed, 10 Mar 2010 12:30:27 +0100, Alfred Molon
<alfred_molon(a)yahoo.com> wrote:
>In article <hn7ckt$g4d$1(a)news.albasani.net>, stephe_k(a)yahoo.com says...
>
>> But is a crop camera 44 x 33 mm vs 56 x 42 mm of full 645 format. Not a
>> huge increase over 36x24mm for the price and what you lose on wide angle
>> $$$ MF glass etc.
>
>68% more area, that is a significant increase. It's also nice to have
>40MP resolution - no DSLR comes close.


Eh? Hasselblad DSLRs have 40 MP or even greater resolution. For
example, the Hasselblad H4D is available with 40, 50 or 60 MP sensors.

From: MikeWhy on
<stephe_k(a)yahoo.com> wrote in message news:hn7hsl$o2n$1(a)news.albasani.net...
> Ray Fischer wrote:
>> stephe_k(a)yahoo.com <stephe_k(a)yahoo.com> wrote:
>>> Me wrote:
>>>> The Mamiya ZD was eventually offered at about that price (<$10k for a
>>>> kit), but still didn't sell. "Only" 22mp, but that was a couple of
>>>> years ago now.
>>> I get so sick of all the MP hype. I've shot with 5MP cameras that image
>>> quality wise blow away 12MP models but of course people "buy based on
>>> MP" just like they bought computers based on processor clock speed.
>>
>> And this new Pentax actually has a higher pixel density than does the
>> Canon 5DII (about 2.7MP/cm2). Will the image quality be as good? We'll
>> see. I doubt that Kodak has as much experience getting the best
>> quality from sensors as do Nikon and Canon.
>>
>
>
> I just wonder if we are going to see an end to this MP race. I wish
> instead of increasing MP they would just focus on IQ and noise etc. But
> they probably know if they don't increase the MP, idiot consumers wouldn't
> "upgrade".
>
> Stephanie

Yeah, Stephanie. The P645D is aimed squarely at the uneducated consumer
market, where it will surely languish and flounder. Cast your vote with your
consumer dollars by buying something else.

Ray, the pixel spacing on the new Pentax is 6 microns, compared to the 5D2's
5.9 microns. One or the other spec is wrong.

From: John A. on
On 10 Mar 2010 06:00:41 GMT, rfischer(a)sonic.net (Ray Fischer) wrote:

>RichA <rander3127(a)gmail.com> wrote:
>>Talk about crushing the price barrier in the medium format!!
>>
>>http://www.dpreview.com/news/1003/10031002pentax645d.asp
>
>And I expect that you'll be buying one quite soon since you obviously
>don't want to be using some cheap 35mm format SLR with limited
>resolution and image quality.

Well, it is metal.