[ogl]

About 1.4X crop based on surface area. Mmm

Crop 1.33x.

[falconeye]

If the 645D uses a comparable 38MP sensor to the Leica S2, I guess that also means (like the Leica) you will be getting huge 106MB JPEG's out of camera

There is no "if", and not "38MP" but 37.5MP (Leica) and 40.0MP (Pentax), both being Kodak's new true sense 6 µm architecture.

The Leica S2 has no AA filter and some outstanding lenses making 100% crops looking sharp (at the expense of some moiré) even without applying sharpening.

We don't know the properties of the 645D AA filter yet. Outstanding lenses for Pentax MF do exist.

[pingflood]

If the 645D uses a comparable 38MP sensor to the Leica S2, I guess that also means (like the Leica) you will be getting huge 106MB JPEG's out of camera, as Chris Weeks has found after using the S2. Yikes!

Wonder if mr Zack will post a "Pentax 645D and why I wouldn't get one" comment lamenting this.

[Miserere]

Expect to soon see 7304x5478 pixel images from a Pentax digital camera

Downsized to 600x400 JPEGs for web view

Given the 55mm diagonal of this Kodak sensor, it likely is the sensor seeing as the first (only?) D-FA645 lens that appeared on the old lens roadmap was a 55mm f/2.8.

...

[thibs]

Wonder if mr Zack will post a "Pentax 645D and why I wouldn't get one" comment lamenting this.

Wait RH will kill it soon enough because it ain't written Canon on the prism.

[thibs]

Falk, what about the sensor used in Mamiya announces DM40 medium format camera: Digital Photography Review ?? Probably the same IMO although the number of pixels doesn't match.

Price against the Pentax should be interesting IMO. 20,000 US$ for the Mamiya. LOL ?

[Miserere]

Price against the Pentax should be interesting IMO. 20,000 US$ for the Mamiya. LOL ?

That's the price for the back only. If you want the rest of the camera and an 80mm f/2.8 lens you have to fork out US$22,000.

...

[thibs]

That's the price for the back only. If you want the rest of the camera and an 80mm f/2.8 lens you have to fork out US$22,000.

...

22,000$ on top of 20,000$ or a 'mere' 2000$ on top of 20,000??

[kenyee]

here's an oldish review of the S2:
Leica S2 First Impressions
Check out the eyeball crop...lol. I haven't seen that amount of detail in a K20D photo yet, even running primes :-)

[gazonk]

That's the price for the back only. If you want the rest of the camera and an 80mm f/2.8 lens you have to fork out US$22,000.

...

80 mm seems like a strange focal length, isn't that equivalent to about 60 mm on FF? E.g. neither normal nor portrait?

Edit: On the other hand, that's like the DA40 on APS-C, so...

[climbertrev]

OK Guys and Girls
Let's get real!!

We can go into spasms of delight - imagining how improved technology will enable us to take "better photographs"

OR

We can work creatively with we have

[falconeye]

Falk, what about the sensor used in Mamiya DM40?

Good question.
The Mamiya and KAF-4000 specs differ by about 5%. It could be the same sensor or not. There certainly isn't another Kodak sensor so close in specs.

So, it may well be that the sensor case isn't as closed as I thought it is


EDIT:

The Mamiya sensor seems to be the same sensor as in the Phase One P40+. With or without the Sensor+ patent hold by Phase One. This sensor is made by Dalsa, not Kodak. Mamiya is on Dalsa's customer list.

A similiar chip (36x48mm rather than 33x44mm and consequently 48MP rather than 40MP) is documented here:
http://www.dalsa.com/public/sensors/datasheets/FTF6080C_datasheet_20090420.pdf

There is a 40% chance the Pentax 645D is using this chip and a 60% chance Pentax is using the KAF-40000 (my gut feeling, taking into account that Pentax and Kodak have partnered in the past -- and that the 1.7x surface claim fits the Dalsa chip better). So, you may want to have a look at this chip as well. In the end, it doesn't matter that much at the current moment in time.

[Mistral75]

Crop 1.33x.

645 film area is actually 41,5 x 56 so diagonal equals to 69.7 mm.

54.78 mm diagonal (see the document provided by Falconeye) would therefore correspond to a crop factor of 1,27 compared to 645 film.

[omega leader]

I'm feeling that a lot of people are setting up unrealistic expectations regarding the price of this camera. I know people did this before the release of both the K-20d and the K-7.

I think a lot of people are going to be disappointed on the 11th.

[lithos]

All I hope is that it bankrupts Leica.

That would be awesome.