A year later, DxOMark officially publishes their Pentax 645Z test results


If you remember my post from December last year, DxOMark briefly published their test score of the Pentax 645Z medium format camera (now $1,500 off) and then removed it a few hours later. The results are now officially available on DxOMark’s website:

It’s clear from our testing that the Pentax 645Z’s sensor is extremely capable, coming within a whisper of matching the performance of the Hasselblad X1D sensor (our highest-scoring sensor to date). The 645Z’s high dynamic range and color sensitivity make it ideally suited for capturing the types of scenes that are traditionally favored by medium-format photographers — landscapes, weddings, portraits, and still lifes (commercial). Medium-format shooters are interesting capturing images with lots of detail, low noise, and smooth tonal gradations.

In addition, the Pentax 645Z controls noise well, making it suitable for use in relatively low light, and perhaps expanding the range of conditions in which medium-format cameras are traditionally used.

It’s interesting to compare the Pentax 645Z sensor against the Nikon D850’s because although the former is about 1.7x larger, it’s also around three years older. While the 645Z beats the Nikon sensor in our tests, the Nikon comes closer than you might expect, given the size difference. If Sony made a medium-format sensor with the same design as the D850, it would beat the sensors in both the Pentax 645Z and the Hassleblad X1D-50c.

Portrait (Color Depth):

Landscape (Dynamic Range):

Sports (Low-Light ISO)

Related posts:

The best-rated cameras according to DxOMark

Hasselblad X1D medium format camera tested at DxOMark (score: 102)

Nikon D850 DxOMark sensor review: the first DSLR to hit 100 points

Via DxOMark

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  • Mihael Tominšek

    Haha, Interesting. A good week ago I sent letter to DxO why the Pentax 647z is not listed and I got the answer they do not comment road map and that there are a lot ofnew sensor to test and that Pentax 645z is comming as well. Interesting.

  • Mihael Tominšek

    Letter from 13.11.2017

    Hello Michael

    Thank you for your comment. We do not communicate about our roadmap. Nevertheless, there are many sensors to come, and we’ll review the Pentax 645z soon. So please stay tuned!
    Regards,
    DxOMark Team

    …and today we are 14.11.2017. Well that is nice. But bitter taste remains. Maybe they delayed 645Z on purpose in favor of Hasselblad so the H1D could be tuned in the meanwhile not to fall behind 645Z… And now H1D finaly shines, they published both. I hope not, but in this money driven world, one never knows. Regardless, at lest results are there and Pentax can be preaised by all means.

    • I think it is no secret that DXOmark does take some paid fees to assist companies in how to achieve a higher score/better results in their tests – this is my understanding. They say that both units are operating independent.

      • Mihael Tominšek

        I believe so the same. And I see nothing wrong in doing this, if they help the industry with their findings. My only gripe is about delaying competition product to be publish in the meanwhile, to not having the privilege to be the top camera they ever tested for the time new competitior comes. Whole year Pentax could be the king. But they waited until finally someone beated it. That is unfair practice.

        • yes, this whole delay was strange

    • A. F.O.

      Money has, is and always be the only thing that seems to matter in this accelerated world we live on. Sad.
      What is the real purpose of a organization that makes (part) of a living by reviewing digital cameras and sensors?….
      !Ah. Sorry. My mistake. :-)”

  • BP2012

    Actually 3.5 years later.

  • Joe

    All the same. They haven’t tested Pentax KP in order not to upset Nikon or Sony.

  • dabug91

    Looks like all this does is prove that the D850 essentially beats medium format cameras at a fraction of the price. The very existence of the D850 effectively eliminates the need for the other two cameras since they don’t even have a 1 stop improvement in high ISO performance. 4500 vs 2600? Not at all substantial enough to buy a medium format camera over the D850. =] D850 is the medium format killer.
    While we all know that the “Sports” category refers exclusively to ISO performance, the hilarious fact of the matter is that the D850 is in fact a better sports camera than either of those two medium format cameras. LOL. So really, it wins in all 3 categories!

    • akkual

      It proofs nothing, as interchangeable lens cameras are systems that combine a body and a lense. Good luck with fiding lenses that achieve similar resolution on D850 that you can easily achieve with cheapest lenses on medium format. The sensors in both of those MFDs are old. PhaseOne IQ3 has the newer 100mpix Sony sensor that boasts about 2 stops more DR than D850 in photonstophotos measurements. As no APS-C is full frame killer, no full frame is medium format killer – and vise versa. They all succeed on different aspects and they all advance on all the aspects – being that full frame probably gives you the best compromise in image quality vs. speed vs. price, and the worst compromise on system weight vs. image quality.

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