Pentax 645z detailed specifications

Pentax-645D-2014 Pentax-645D-2014-medium-format-camera
The detailed specifications of the Pentax 645z medium format camera leaked online - here is the short version (full specs after the break):

  • 52.99MP CMOS without AA filter (51.4Mp effectively, 8265 x 6192 pixel)
  • ISO 100 - 204,800
  • SAFOX11 AF system, 27 point (25 cross type), LW -3 - +18
  • 3.2" LCD screen: 3:2 ratio, 1,037,000 dots
  • LiveView, contrast AF, focus peaking
  • TTL metering with 86k RGB sensor
  • 3fps in JPEG L up to approx. 300 frames
  • Full HD video (1920x1080), 4K in intervall mode
  • USB3.0
  • Official announcement on April 14th
  • US price: $8,496.95

Additional 645z pictures can be found here.

Detailed Pentax 645z specifications:

Item number 17972
Camera Type Digital SLR camera with interchangeable lenses, TTL auto exposure and auto focus
Sensor Technology
Sensor Type CMOS with primary color filter, without anti Alaising filter
Recording format 43.8 x 32.8 mm
Total resolution approximately 52.99 megapixels
Effective resolution 51.4 megapixels

  • RAW: 51 MP 8265 x 6192 pixels
  • TIFF: 51 MP 8265 x 6192 pixels
  • JPEG: L (51 MP] 8256 x 5440 pixels), M (36 MP 6912 x 5184 pixels), S (21 MP 5376 x 4032 pixels), Small (3 MP 1920 x 1440 pixels)
Image format
  • RAW (DNG and PEF) (3x14 bit)
  • TIFF
  • JPEG (3 levels of quality)
Video format
  • MPEG-4 AVC/H.264 (MOV)
  • Motion JPEG (AVI) for video recording interval
Photosensitivity automatically or manually: ISO 100 - ISO 204800
Shake Reduction Shake Reduction system with appropriate lenses
Sensor Cleaning
  • Sensor cleaning by ultrasound-based piezo electronics to sensor protection glass.
  • With dust warning and display on the monitor (the right way).
  • Pixel Mapping
Lens attachment PENTAX 645AF2 Bayonet(Compatible with 645AF and 645A bayonet connector)
Distance Measurement / autofocus
Focusing Phase detection autofocus system SAFOX 11 with 27 AF sensors (including 25 cross-type sensors and flux sensors for optimum AF performance with fast lenses).Spot AF and AF automatic, switchable to tracking (Servo) Autofocus. Focus Lock on trigger.
Each of the 27 AF points can be selected manually.The Predictive already sums up the subject on the edge and calculates the correct focus for moving subjects advance.
AF working range LW LW -3 to 18
Viewfinder Type Built-in hard trapezoidal prism with Kepler's telescope viewfinder
Field about 98%
Viewfinder magnification approx 0.62 x (55mm)
approx 0.85 x (75 mm)
Focusing screen Changeable "Natural-Bright"-Matte with AF frame.Change focusing screen with grid or scale division optionally available.
Viewfinder displays Recording data, ISO, focus confirmation and electronic spirit level
Diopter correction -3.5 Dpt. - +2.0 Dpt.
  • 3.2 "- TFT Color LCD 3:2
  • "Air-gapless technology" for particularly bright color reproduction
  • Resolution approximately 1,037,000 dots
  • Hardened and kratzunempfindlcihes monitor glass
  • Monitor brightness and color reproduction calibrated
  • Zoom function up to 16x
  • Status Display with recording Relevant Data
  • Electronic 3D water balance (Jet Screen)
  • Menu screen for certain specified configuration options
  • Status display and the menu screen rotate with the rotation of the camera to horizontal and vertical view
  • Histogram Display
  • Index or calendar display
Live View
Live View TTL Live images from CMOS sensor

  • Contrast auto focus with face detection
  • Frame with 100%
  • Magnification of 2x, 4x, 8x, 12, 16
  • Manual focus with focus peaking
Status Monitor
Display Status Monitor on top of the camera, lit with all relevant shooting information
Type Electronically-controlled, vertical-traverse, focal-plane shutter.
Shutter speeds Automatic: 1/4000th sec to 30 sec (infinitely)
Manual: 1/4000th sec to 30 sec (in increments of 0.3 or 0.5 EV) and Bulb.
Flash sync speed 1/125 sec
Metering TTL full-aperture measurement with 86K-pixel RGB sensor and real-time analysis systemMeasurement methods: Evaluative, Center-weighted or Spot metering
  • Scene modes:
    - Hyper Program
    - Program AE with depth-priority
    - Program AE with priority on shallow depth of field
    - Program AE with time priority
    - MTF (optimal aperture according lens construction is treated with priority)
  • Sensitivity Priority (shutter speed and aperture are automatically set to ISO-choice)
  • Aperture Priority (time is set automatically to the selected aperture)
  • Time priority (aperture is set automatically to the selected shutter speed)
  • Aperture and shutter priority (sensitivity is automatically set to the selected shutter speed and aperture)
  • manual exposure
  • Long Exposure
  • X-sync (1/125 sec)
Workspace EV -1 to EV 21
Measured value touch of a button
  • ± 5 EV
  • Auto Exposure Bracketing 3 or 5 exposures
Flash function Hot shoe on the camera top, X-sync terminal,
Recording parameters
Types of Recording Six color characteristics in the "Custom Image" function:

  • Bright
  • Of course
  • Portrait
  • Landscape
  • Alive
  • Covered
  • Positive Film
  • Monochrome

with individual adjustment for:

  • Saturation
  • Hue
  • Hi-/Low-Key adaptation
  • Contrast
  • Highlights adjustment
  • Shadow Adjustment
  • Sharpness (Fine Sharpness and Extra Sharpness)
White Balance
  • Automatic or manual
  • TTL setting with the imaging sensor
  • Default:
    Cloudy Sky
    Fluorescent (W, N, D, L)
    CTE (Color Temparature Enlargement)
  • 3 manual settings: continuously in the range of 2,500 K to 10,000 K
Digital filter
  • Farbextrahierung
  • Toy camera (vignetting / Lomo effect)
  • Retro
  • High contrast
  • Monochrome
  • various color filters
  • Watercolor
  • Pastel

and much more

Tripping functions
  • Single shots
  • Continuous shooting at 1 / Sec. (Cont. L) or up to 3 B / sec. (JPEG L - H Cont.)
    Up to 300 images in succession (JPEG L - Continious L)
  • Self-timer (12 or 2 sec)
  • Mirror lock-up
  • Multiple Exposure
  • Interval Photo - 2 sec - 24 hours, 2 to 2000 recordings; Start time can be set individually.
    Footage - 4K (2 sec), Full HD, HD - 14 sec to 1 hour of recording time; 14 sec - 99 hours intervals; Start time can be set individually.
  • IR remote control - 3 meters (Optional)
  • Cable Switch CS 205 - 1m (Optional)
  • Flucard for wireless camera control and image transmission (Optional)
  • Camera Utility 5 for camera control from the computer (Optional)
Video function
Recording function
  • Full HD (1,920 x 1,080)
  • HD (1280 x 720)
  • 4K in interval mode
  • 60i / 50i / 30 B / sec. / 25 B / sec. / 24 B / sec.
  • Recording format MPEG-4 AVC/H.264
  • Manual Exposure
  • Manual Focus leadership for the optimal implementation of the creativity
  • maximum recording length 25 minutes
  • Stereo sound recording with built in microphone
  • Connecting an external stereo microphone possible
  • Manual audio level
  • Headphone jack
Video Editing
  • Parts of video recordings
  • Deleting Scenes
  • Save picture from motion picture
Image Storage
Memory Type SD Memory Card, SDHC Memory Card * (UHS compatible), Eye-Fi card or Flucard* The maximum storage capacity with SDHC cards is 32 GB
To the power of the camera to make optimum use, we recommend SanDisk Extreme III memory cards.
File Formats
  • PEF (PENTAX own RAW format)
  • DNG (open RAW format)
  • JPEG (Exif 2.21) (kompremierte JPEG files: *** Best, ** Better, * Good), DCF (Design rule of camera file system)
  • Simultaneous recording of JPEG and RAW files possible
File Name
  • Folder Name: Date or indivuiduell (default: PENTX)
  • Default file name, or up to 4 individual characters
  • Sensor cleaning by ultrasound - The dust is collected by means of adhesive tape in the camera
  • Dust Alert to display the buildup on the sensor
  • Depth of field preview
  • Digital Preview for verifying correct exposure, color temperature or the color in the Custom Image function
  • Histogram display in individual channels
  • Programmable dials (The front and rear control dial can be assigned individually for the different exposure options
  • 76 housing seals against moisture and dust.
    protection against environmental influences is one of the most important details to an electronic camera. Rain or high humidity can lead to corrosion in the camera body. The photographer noted this but only much later, when the workshop requires high repair prices or repair is no longer possible.
    Much faster makes the stay at the beach noticeable. In modern microtechnology a grain of sand is sufficient to allow the tiny motors, and even smaller gear wheels lock and the camera often becomes unusable. With the comprehensive protection program for the 645Z, this camera can still take pictures (even in winter to -10 ° C), if other photographers have their camera better packaged.
  • USB 3.0 Hi-Speed ​​(Micro B)
  • X-sync
  • HDMI (Type 3)
  • AC adapter (optional)
  • Cable Switch CS 205 (optional)
Energy source Rechargeable lithium-ion battery of the type D-LI90
Battery capacity
  • about 650 pictures
  • approximately 400 minutes of recording / playback time

Under Pentax testing conditions at 23 ° C

Dimensions and weight
Height 117 mm
Width 156 mm
Depth 123 mm
Weight 1,550 g (with card and battery)
Scope of delivery Part No. 39475 Power Cord D-CO2E
Art No. 39830 lithium-ion battery D-LI90
Art No. 39831 battery charger D-BC90
Art No. 31011 Eyecup O-EC107
Art No. 38615 Strap O-ST150
Software S-SW150
eyecup FSThis camera comes with a German-speaking guide. If an instruction in a foreign language have to be settled expeditiously, please contact your local camera dealer. We are happy to provide further instructions. As a reimbursement of 20 euros will be charged.
optional Item No. 39830 Li-ion battery D-LI90
Art No. 39834 Battery Charge Kit K-BC90E
Art No. 38779 Power supply K-AC132E
Art No. 39012 GPS Module O-GPS1
Art No. 38584 645D MATT SCREEN DF-80 Toilet
Articles No. 38582 645D MATT SCREEN DG-80 Toilet
Articles No. 38583 645D MATT SCREEN DK-80 Toilet
Articles No. 39357 Sensor Cleaning Kit O-ICK1
Art No. 37248 Cable Switch CS-205
Art No. 39892 Weatherproof remote control O-RC1
Art No. 38610 Flucard for 16GB Pentax O-FC1
Art No. 30465 AF 200FG flash
Art No. 30438 AF Speedlight 360FGZ II
Article No. 30456 AF Speedlight 540FGZ II
Article No. 50278 SLR Backpack

Additional Pentax 645z pictures:

Pentax 645z medium format camera top Pentax 645z medium format camera front Pentax 645z medium format camera side Pentax 645z medium format camera bottom Pentax 645z medium format camera back

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  • Geoff

    Awesome. If only I could afford it. Even though I can’t afford it, I still find it exciting. Maybe in 10 years something like this will be in the under $4,000 price range?

    • This particular camera will be $4000 in less than 10 years in the used market. Will still take photos the same way 🙂


  • Frank

    Another Ricoh Pentax home run 🙂

    • Robert Martinu

      In studio – yes. Outdoors – depends on the time of day/weather.

      • Alex

        How so?
        This camera is weather sealed, and it has a comfortable ISO range.
        Maybe you’re thinking it has the same limits as its competitors? It doesn’t.

        • Robert Martinu

          The competition has leaf shutters, the Pentax is much more limited in that regard – and that’s where the money is.

          • Arn

            What the point to have a leaf shutter for landscape photography ?

          • Remedy

            The same as for anything else. Get it?

          • Alex

            And leaf shutters will protect those cameras from rain and dust? 🙂
            Outdoor shooting is not limited to outdoor strobe shooting in full daylight. In many cases, it’s the other cameras that are seriously limited – for 4x the price.

      • AmyLee

        …you realize that Pentax has the most complete and dependable weather sealing in the industry, right?

        • Robert Martinu

          How does weather sealing help wit cutting ambient light to keep strobe power manageable?

          • G X

            for 10k $ you can buy a lot of ND filters 😉

          • Zos Xavius

            Or he could just buy one of the leaf shutter lenses available for the 645. 1/500 sync. If ricoh want’s to seriously develop the 645 system they will likely release a newer leaf shutter lens. The camera has the support built in.

      • Patrick

        Phooey! This 2nd gen MF beauty from Pentax, is a pro level tool that’s more than capable of holding it’s own, in or outdoors. With it’s improvements, refinements, and new price point, I think this one’s going to seriously shake the tree, of it’s pricier competitors. Amazing value, especially for landscape shooters.

        I am going to be thinking long and hard now, if it’s time to let go of the D800E. Pentax makes the cost of upgrading, in the MF ecosystem, extremely affordable. Although, for the majority of users, that’ll probably never be needed.

        Am I wrong, but isn’t there a Pentax 6×7 to 645 lens adapter, that allows one to use their older 6×7 leaf shutter lenses?

        Back in the film days, the only real complaint I had with my Pentax 645, was the dedicated back. But with digital, this isn’t relevant any longer.

        • frank

          You are correct sir. There are various types of adapters which allow the mounting of Pentax’s 67 lenses, and Hasselblad to the 645D and the 645Z.

        • Ronnie MacLellan

          There is the Pentax SMC Pentax 645 LS 75mm F2.8 – a manual focus leaf shutter lens. No longer made but usually available in the used marketplace, so no need for a 67 to 645 adapter. 🙂

        • guest

          I’ve never, ever dabbled in MF, and if this thing provides something to a group of users I hope it sells like crazy. But believe me, it’s grotesque.

        • hexx

          From what I’ve been reading (research done when price of current model dropped) it’s not a clear cut with older lenses, Pentax themselves admitted that they’ve been designed for film and they don’t usually meet requirements of digital sensor.

          • Zos Xavius

            I bet the 645 lenses are mostly good enough to resolve the 40mp on the 645D, but that the issue with them on digital is fringing. Its the same story on smaller formats too. Pentax also claims that older lenses are not optimized for digital. Oh well. A little fringing never stopped us from using Takumars and other classic pentax lenses. Some are amazingly good even today.

      • AMJ

        I think the problem with outdoor is not weather , it is weight ! It weighs 1.5kg without lens. With the 55mm it will be like 2kg and that is a lot of weight for a day walk. If only it was mirrorless…

      • sperdynamite

        Then you can choose a Phase or a ‘Blad. You understand the concept of filling a market gap right? This is a low cost medium format camera for landscape and location photographers who work in available light. The Hasselblad can only shoot up to 1/800th of a second, which would be problematic if I wanted to shoot with the 100 f2.2 wide open in daylight. So, horses for courses. Or as in the internet forum world, complaints from people who can’t practice critical thinking.

  • Kynikos

    Very exciting. So glad that digital MF is getting more affordable as time goes by.

  • hexx

    Interesting price point. But shame about the flash sync speed. Definitely great addition to the market. One thing though, 14-bit, CCD backs out there are all 16-bit.

    • The 16bit made more sense back when DMF had big pixels. This one here has the same pixel pitch as a 31MP FF sensor. You’d be lucky if you could really get anything more than 12 bits of real DR (not the DxO definition). But that’s not to say it’s bad. The higher number of pixels compensate for things.

      • hexx

        It’s not about the pixel size, I know you know it;) there simply is so much more colour information recorded in 16-bit file than in 14-bit one. Very visible when you start to recover shadows which usually fall apart sooner on the lower bit files.

        • There are two things you haven’t taken in to consideration. ..

          1. A larger photosite gather more photons than a smaller photosite and so they need more digits (bits) to accurately record this number. With high pixel densities you have small photosites and they need less bits individually. But since there are more of them they make up for things when you consider the same area (e.g. per same sensor size). Basically, things average out and you get higher precision.

          2. No matter how many bits you allocate, the amount of precision a photosite can have is limited.

          • El Aura

            The amount of precision is limited because light and in particular light in the way it is recorded in a photosite is a discrete phenomenon, ie, as photo electrons. When there are, eg, 128 photo electrons, you cannot get more precise than counting 128, any additional precision is merely encoding errors, eg, 128.32 electrons means you have at least a measurement error of 0.33 electrons.

            For example, if you have a maximal signal of 128 e- per photosite (saturation capacity) and a minimum error of 2 e- (the signal variation you measure with zero light falling on the sensor), 7 bits is already encoding error. If you measure, eg, 29 e- that would be encoded as 1 16-bit + 1 8-bit + 1 4-bit + 1 1-bit. But we know that last bit is already noise as the real signal could have been between 27 and 31 e- and thus encoding anything with a higher precision than 26, 28, or 30 e- is just recording noise.

            Thus the maximum precision per pixel size is given by the saturation capacity (in e-) divided by the (read) noise floor. Which is also the DR definition of DxO and so far no camera has crossed the 14-bit barrier in DR per pixel (and the 50 MP Sony sensor will have a pixel size between that of the D600 and D800 and thus will likely fall in between the values of those two cameras (plus a few small improvements probably).

            The first camera that might cross that barrier is the Sony A7s as the D600 is already a bit better than the D800 (ie, saturation capacity increased more than read noise increased, if that trend is maintained, the DR per pixel might hit 14-bit and thus for the sake of a bit of over-encoding could justify 15 (or 16) bit.

          • Yup… and I think you meant to reply to hexx 🙂

    • Zos Xavius

      those 16-bit backs are somewhat overstated. they are pretty much 12-14 bits internally and just save information as a 16-bit file. its like most consumer scanners. They state they can scan at 16-bits, but really you aren’t getting much more than 8-bits anyways.

  • danny

    Groan, flash sync of 1/125 just kills this for professional work outside of landscape. Leaf shutters, high sync flash seems to only be done by Phase or Hassi and X100. Depressing.

    • Ronnie MacLellan

      Get a life, Danny, or maybe just settle for a Pentax leaf shutter lens (1/500s).
      Alternatively, cough up another $20,000 for a Hassie or Phase1

      • dan p

        Well all i have to say is the contax 645 has the same sync speed and people use the contax kit.

    • madmax

      You are partly right, but also can use a leaf shutter lens for Pentax or use continuous lighting. Anyway, this camera, although “affordable”, is too much camera for most people: 52MP files are a nightmare to process and store (ask people shooting with a 36 MP Nikon D800) and you will need a really fast computer and storage disks and cards, lenses are not exactly cheap and camera is very bulky… The big question is: Do you really need it?

      • It’s not that big a deal… it’s 3 images instead of 4 in roughly the same space. That’s not the end of the world.

        Most people shooting digital can be a bit more selective and careful when shooting and save space… It’s like adjusting your driving style to save fuel… except there’s no fun in shooting aggressively.

        What do you shoot with?

        • madmax

          $1 to store 275 pictures? Yes, in your dreams. D800 file size in raw is 50 MB and if you shoot raw+jpeg then is over 70 MB for a single frame. Pentax resolution is roughly a third higher than D800. Also you need to calculate the backup space and memory cards. Your maths are not very good.

          Anyway, not a big problem if you buy gear for $15000 (camera+lenses), to shoot let´s say 50 frames per month.

          • I calculated as $40 per TB of external storage. Unless you have no harddrives, I see why you have to assume that all your files will be on a memory card the whole time.

            PS: If what I say sounds off or wrong, the chances are it’s the reader that’s off or wrong 😉

  • What is the DR of this new Sony’s sensors used on the latest Medium Format cameras?

    • dan p

      I thought it was around 14ev around the same as the sensor in the D600/a7/rx1. Better than most other MFD

  • guest

    “kratzunempfindlcihes” ==> kratzunempfindliches (german) ==> scratch resistant
    color characteristics “of course”: the german word “natürlich” has two meanings: 1.) “of course”, 2.) “natural”

  • Itai

    Very disappointed some can still try to sell a $8000+ USD camera and not have a 100% coverage viewfinder. Also, tilting screen, on a serious camera, really? The thing looks built like a tank but then there is that hinge weak-point. Keeping my K-5 IIs (and backup K-3) for now 🙂

    • jvossphoto

      To me the tilting screen will be a Godsend for low position composures and macro work. Will save my poor old broke down back;^)

      • TheInconvenientRuth

        Absolutely, for low angle studio/macro/landscape work, this is great. A camera like this, even if it is properly weathersealed, is not the kind of camera you (a)buse like a 1Dx or D4s, I don’t see it is a weak point but more as a definite edge over the Hassy and Phase one.


      You have a K-3 as a backup to a K-5???
      I guess you also have a Ferrari as a backup to your Kia…

      How on earth are you gonna shoot a big camera like this holding it on waist-level without a removable prism assembly or an articulating screen?

  • PentaxMan

    This’ll kill the D800 – a camera stuck between APSC and medium format with no natural market of its own.

    • Patrick Downs

      Not. $2700 for a D800, a camera you can use for anything from photojournalism to landscapes (both of which I do). Full array of lenses, including PC lenses, the 14-24, zooms, superb teles. MF is great, and I’d have one too if in the budget, but the D800 is a superb all-around camera for anything except hardcore sports shooting. 20X30 prints … no problem.

  • Nice

  • Warpig

    Astonished by all the comments, people will whine for the most little thing. Their lives must be a real tragedy.

    • Ronnie MacLellan

      Absolutely! But I guess there are always negative nitpickers on every forum. Pentax owners are so used to hearing their gear being put down, but it doesn’t stop us enjoying Pentax cameras for their excellent qualities. So who is loosing out – it’s certainly not us.
      The 645Z is fantastic, a peach of a camera if ever there was.
      Even if I can’t justify spending that much on a camera, it is clearly good value in comparison with other medium format digital cameras.
      But hey! When could I ever justify the money I have spent on cameras……..

    • dan p

      Only negative thing I will say is video for real? lol… I don’t like video on a still camera, but easy solution I just ignore that feature. I think this will probably sell a little better than the previous version. higher res, more dynamic range(est), Killer ISO sensitivity… People need to look at all the positives and they’ll see they clearly outweigh any negatives.

  • jvossphoto

    Hell the original price tag for the 645D was 10,000. For this price point Pentax will definitely be bringing the hammer down on Hassy and Phase one. Is faster flash sync really worth that much more? Plus I see no reason why Pentax won’t produce leaf shutter lenses along with more SR lenses.

  • El Aura

    Now, let’s plot number of AF points and price between the three main competitors:

    Pentax: 27 – 8.5K
    Phase One: 3 – 35K
    Hasselblad: 1 – 27.5K

    • Alex

      Let’s also plot the number of fps:

      Pentax: 3
      Phase One: 1.2
      Hasselblad: 0.9
      IMO that’s quite significant; it won’t make it a sports shooting camera, but some things are occasionally happening faster than one frame per second.

      This is the advantage of buying the entire package (instead of upgrading only the back, for 4x the money). You’ll get an up to date everything.

      • El Aura

        The biggest handicap for the Pentax is the lack of enough lenses ‘good’ enough for its sensor, both in regard to the optimisation needed for digital sensors in regard to ray angles, colour corrections, colour shifts over the frame (Leica needed to code colour shift corrections over the frame into the raw files and even lenses like the mighty Zeiss 21 mm f/2.8 shows such colour shifts) as well as general IQ quality (resolution, contrast, coma, etc.) improvements.

        Leica is clearly ahead in lens quality but has the smallest selection (but it has fully functioning adaptors for Hasselblad and other lenses). Hasselblad and Phase One have larger ranges with a higher percentage of them being top-notch on digital then Pentax (simply because they had many years optimising their lens range for digital). Add the Pentax sensor electronics and AF into a Leica S body and you would have a killer product.

        • Alex

          Do you have any experience with Pentax 645 lenses, or you’re just assuming the competition is better because “they had many years optimising their lens range for digital”?
          By the way, there are more Pentax 645 lenses on the market than H5 Hasselblads. Each brand has 3 optimized for digital lenses, which means you didn’t even bothered to check before making claims like the above’s.

          • El Aura

            No, I just have the consensus view of the large majority of reviewers. Everybody praises the Leica S lenses as the best (all of them) but several reviewers have found that only a minority of Pentax lenses do the sensor full justice. What you hear about Hasselblad/Fuji lenses and Mamiya/Schneider lenses is in between, with Schneider maybe having the lead.

          • Alex

            I’m sure the Leica lenses are excellent; but could you give examples of such reviewers? Thank you.
            By the way, I see you’re moving the goalpost from “not good enough” to “doing full justice”.

          • dds

            I don’t know whom did you talk to, but pentax 645 and 6×7 have a bloody excellent reputation. Look up some tests and you will see that they are comparable, or better, than Hasselblad at a fraction of a price.

      • El Aura

        In regard to (PD) AF, that is of course part of the body. But the frame rates are more likely limited by the sensor, sensor read out and image processing (and I would guess all three are part of the back, not of the camera). Though, mirror and shutter mechanism are body limited.

    • Don

      Not that it matters much, but there is effectively only one AF point on Phase One systems now – the three exist but you can no longer select an AF point from the custom menus.

    • Remedy

      And now lets plot number of sensationally spectacular photos taken with those cameras:
      Phase One: gazillion
      Hasselblad: gazillion to the square
      Pentax: 3/few/some/not so many (pick the right answer)
      Go figure.

      • TinusVerdino

        Yeah because all photographers start to suck when they touch a Pentax. Like it’s a curse.

        • Remedy

          How about you read again what I wrote but this time try using your brain. Drawing most retarded and out of orbit conclusions at its best. Facepalm.

          • TinusVerdino

            How about I don’t

          • Remedy

            That’s fine too, it’s OK to be stupid these days.

      • El Aura

        How many years people had time to buy Pentax MF digital cameras and corresponding lens collections and integrate them into their professional workflow (including their image processing workflow)? And how many years were people able to use and built up Hasselblad and Phase One/Mamiya digital system?

        Of course Phase One and Hasselblad have the lead, they had a multi-year head start (and probably even before digital had a head start). My key point here is that Pentax is able to put a much more advanced AF system into their camera because they have the technology from their DX-DSLR cameras (which sell in much larger numbers than MF digital camera systems).

        Phase One and Hasselblad still have software advantages (and other ecosystem elements) but camera body-wise, Pentax is getting clearly ahead in some areas.

        • Alex

          This point was already debunked – when you falsely claimed that e.g. Hasselblad has more “digitally optimized” lenses than Pentax, just because they had “more time” to make them.
          Yet both companies have 3 such lenses – D FA645 vs. HCD.
          Also, Pentax is the only one having in-lens image stabilization (one lens so far).

          Pentax has a lot of experience in the medium format arena (with two lines, 645 and 6×7, the latter started in 1969). They’re good with digital, too – mainly due to their expertize in the small format arena. And they have the resources to make and sell a 645Z for a mere $8500.

        • Remedy

          So all those sentences and conclusions just to end up confirming everything I said. Thanks.

      • dds

        Are you being serious? Did you go and take a look, at let’s say 500px, or frankly anywhere else? You are horribly wrong, yet you are very confident about this illusion of competence.

  • Ronnie MacLellan


  • disgusted

    Pentax users must be the worst type of person to talk to at a photography meet. All they do is whine about what’s missing and killing someone else’s camera. Don’t you people have lives?

    • Zos Xavius

      nope 😛

    • dazdza

      Those kind of people are usually other brands owner that tries to defend their imaginary superior position because they use hardware from maker with a wider consumer base.

      Appart from the “won’t stop talking about the limiteds” guy, I found pentax user to be more like quiet people that like classic photography.

  • Arn

    Damn, i’ve wet my bed.

  • Marco –

    This is a dream camera…if I were a pro, I’d get it immediately.

    • madmax

      “If I were a pro”… true. I agree the camera is fantastic, and also most pros (news, social photography, wedding …) don´t need a “dream camera” like this.

  • TheInconvenientRuth

    4k video in ‘interval mode’, can anyone tell me what that means?
    It takes pics on self timer and then renders them into a 4k video?!
    I hope I’m wrong about that…

    • Alex

      That’s exactly what it means.
      Neat if you do interval shooting, useless if you’re a film director 😉

  • malchick743

    14bit A/D, SD card usage (even no XC support?), only 1/125s X-sync, JPEG-only shoot mode, USB3-only tethering…

    Not very professional so to speak

    • Alex

      Better look at yourself; you managed to get most of those points wrong. That’s very… professional.

      The $35.000 PhaseOne IQ250 also has a 14bit A/DC.

      SD XC is supported, or at least the card door has a SD XC inscription on it.

      RAW mode, of course, is there – DNG and PEF.

      Wireless tethering is available via the optional FluCard.

      • anon99

        Think “JPEG-only shoot mode” means the capability to shoot in JPEG only, while other backs only allow for shooting in raw (and not even tiff)

        “USB3-only tethering” — most likely implies lack of Firewire port which was a norm in most DBs

        • Alex

          Wait, so the option of shooting JPEG (besides RAW) is “un-professional”? And USB3 is not good enough?

          Those two points are complete nonsense.

          • Andrew Munster

            USB3 is over 5X faster then firewire 800 even apple is dumping firewire…..

          • fuse

            … But not Thunderbolt

            Perhaps when Thunderbolt gets more mature in the future then it may be used in future D-backs and that even USB3 would be dropped

          • Zos Xavius

            Don’t be silly. USB3 will be as ubiquitous as USB2 as time goes on. Thunderbolt will be relegated to being another expensive proprietary interface.

      • anon99

        Think “JPEG-only shoot mode” means the capability to shoot in JPEG only, while other backs only allow for shooting in raw (and not even tiff)

        “USB3-only tethering” — most likely implies lack of Firewire port which was a norm in most DBs

  • Andrew Munster

    It has the same image processor as the k3 this mean it supports SDXC and UHS II

  • Panchoskywalker

    What’s the crop factor here? 1,3?

    • Don

      Yes, I suspect the same CMOS sensor that is used on the Phase One and Hasselblad systems. Should be good, but I couldn’t find any love for the crop factor..

      • Andrew Munster

        Medium format has traditionally referred to a film format in still photography and the related cameras and equipment that use that film. Generally, the term applies to film and digital cameras that record images on media larger than 24 by 36 mm, but smaller than 4inches(101.6mm)x5inches(127mm)
        There is no such thing as full frame medium format However if you compare this to full frame 35mm that it is has the crop factor of 0.78 so the sensor in the 645D is 1.7 times larger than 35mm film.

        • Panchoskywalker

          I understand everything you wrote and I bet you understood what I meant. All you said is true but someday we will see a MF digital camera with a 4,5×6 sensor and you will see people around you talking about a “full frame medium format camera”. Be prepared!

  • crazy41

    I want bigger sensor, at least real 645 aka 5,6×4,2 🙂 but it would cost definitelly much more.


    Really happy for Pentax. Congrs 🙂

  • Anto de Chav

    This looks awesome ..

  • Matt

    I want!

  • Jason Wingrove

    a countdown for days.. that leads to nothing but the words ‘coming soon’? hope they get medium format better than they get marketing

  • Mike

    I guess ‘645’ sounds better than 4433. Not really a 60x45mm sensor is it as the name suggests. It’s to MF as APS-C is to 35mm.

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