Serious thinking of the Pentax 645 or shall wait? Locked

Started May 4, 2014 | Discussions thread
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qianp2k Forum Pro • Posts: 10,350
Re: Serious thinking of the Pentax 645 or shall wait?

bobn2 wrote:

marcio_napoli wrote:

I agree, but considering there's only 1 CMOS DMF sensor available, and no one really knows its performance for sure, I think the CCD backs are still relevant.

Specially if you consider these will be the backs most will afford on the used market.

The new sensor, used in the 645Z, P1 IQ250 and 'blad H5-50c is a Sony Exmor - it's performance is pretty predictable. It has a 5.3 micron pixel, equivalent to about 30MP on FF - so it should be a pretty known quantity, if we know hoe the Sony A7R and Nikon D800E perform, it will perform much like those, but with a bigger sensor.

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Bob

CMOS sensor is better in high ISO that is sure. Not sure how it compares to CCD sensor in low ISO such as even bigger MF CCD sensor (so-called fullframe MF sensor) in 80mp CCD PhaseOne and Mamiya MF cameras.

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