Pentax 645Z Medium Format DSLR Camera (Body Only)


  • 51.4MP CMOS Sensor – 43.8 x 32.8 mm
  • Prime III Image Processor
  • Anti-Alias Filter-Less Design
  • 3.2″ 1037K Dot Tiltable Air-Gapless LCD
  • Full HD 1080 60i/30p/24p Video Capture
  • ISO Sensitivity Range of 100 – 204,800
  • SAFOX II TTL 27 Point Autofocus System
  • 3 fps Continuous Shooting
  • Weather Sealed Magnesium Alloy Body
  • Pentax Flucard and Eye-Fi Compatible

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The 645Z Medium Format DSLR Camera (Body Only) from Pentax features a 43.8 x 32.8 mm CMOS sensor with 51.4 effective megapixels. The sensor is designed without an anti-aliasing filter to maximize sharpness and details. RAW files can be recorded at 14-bit and saved using either the proprietary PEF format or Adobe’s DNG format. 
An ISO range from 100-204,800 and high S/N ratio provides low noise, low light capability, and the Prime III image processor lends itself to fast image capture with a maximum of 3 fps continuous shooting. The SAFOX II autofocus module utilizes 27 autofocus points including 25 cross-type sensors and 3 AF sensors dedicated for low light focusing. The new Real Time Scene Analysis System features an 86,000 pixel RGB light-metering sensor for enhanced accuracy of exposure, white balance, and auto-focusing.
Full HD 1080 60i/30p/24p video capture is supported in the H.264 format with a dedicated button for instant switchover from stills to video. An external microphone jack enables high quality audio recording with manual sound level control and monitoring. An HDMI port outputs HD images to HDTVs and a USB 3.0 jack enables fast image transfer to your computer. Interval recording for time-lapse videos is supported with an output of UHD 4K resolution.
A 3.2″, 1037k-dot, tilting, air-gapless, LCD monitor enables live view composition and playback viewing from a various angles and a trapezoid-shaped glass prism viewfinder with Kepler telescope-type eyepiece unit provides traditional eye-level composition. The design of the viewfinder also helps to achieve the relatively compact size of this medium format camera. The 645Z is extremely durable with an aluminum alloy chassis, magnesium alloy shell, and 76 specific weather seals to keep out moisture and dust. It is a camera designed for field as well as studio and can operate in temperatures from 14-104°F. 
The camera body also features a deep set ergonomic grip, ideal for hand-held shooting, easy-to-access buttons, and a top-plate, sub-LCD screen that is angled up for easier visibility of camera information. A hot shoe mount is supported, and in addition to the tripod socket on the camera’s base, a second tripod socket is located on the side of the camera for convenient and stable tripod shooting in the vertical position. Two SD slots are provided for versatile image storage and both Flucards and Eye-Fi cards are compatible for wireless image transfer. The optional Pentax Image Transmitter 2 software along with the USB 3.0 output enable seamless and fast tethered shooting.
The 645Z is compatible with the new FA autofocus lenses as well as older 645 lenses and with Pentax 67 medium format lenses when used with an adapter.

51.4 MP CMOS Sensor
Anti-Aliasing Filter-Less Design
RAW Capture
Prime III Image Processor
ISO 100 to 204800
Full HD 1080 Video Capture
Interval Shooting with 4K Output
3.2" 1,037k-dot Tilting Air-Gapless LCD
Pentaprism Viewfinder
SAFOX II Autofocus Module
Real Time Scene Analysis with 86,000 Pixel Sensor
Multi-Pattern Auto WB system
Durable, Weather-Sealed Form Factor
Dual Memory Card Slot and FLU Card Compatibility
Lens Compatibility
Additional Features
Package Weight 7.55 lbs
Package Dimensions 10.0 x 9.291 x 8.583 in
Exposure Compensation

±5 EV (1/3 EV steps or 1/2 EV steps)

Package Weight

7.55 lb

Total Pixels


Shutter Type

Electronically controlled, vertical-run, focal plane shutter

Metering System

TTL open aperture metering using 86K pixel RGB sensor

Metering Modes

Multi-segment metering, Center-weighted metering, Spot metering

Self Timer

Yes – 12 seconds, 2 seconds

File Formats

Stills: RAW (PEF/DNG), TIFF, JPEG (Exif 2.30), DCF2.0 compliant Video: MPEG-4 AVC/H.264 (MOV) *Motion JPEG (AVI) for Interval Movie Record

Operating Temperature

14 to 104°F / -10 to 40°C


Connection Ports: USB 3.0 (micro B), external power supply terminal, cable switch terminal, X-sync socket, HDMI output terminal (Type D), stereo microphone input terminal (USB Connection: MSC/PTP) Video out: HD (via HDMI), NTSC, PAL

Live View

TTL using CMOS image sensor

AF Modes

Single AF (AF.S), Continuous AF (AF.C), Manual, Focus operation customizable

Color Depth

JPEG: 8 bits/channel RAW: 14 bits/channel

Viewfinder Magnification

0.62x (55mm f/2.8 at infinity); 0.85x (75mm f/2.8 at infinity)

Effective Pixels


Viewfinder Type

Kepler-telescopic, trapezoid prism finder

White Balance

Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color,N: Daylight White, W: Cool White, L: Warm White), Tungsten, Flash, CTE Manual mode(s): Manual (up to 3 settings can be saved), Color Temperature (up to 3 settings can be saved), Copying the white balance settings of a captured image possible.

Electronic Level

Displayed in viewfinder and LCD panel (horizontal direction only); displayed on LCD monitor (horizontal direction and vertical direction)

Depth of Field Preview

Optical (diaphragm stop-down), Digital

Diopter Adjustment

-3.5 m to + 2.0 m-1

Flash Synch Speeds

1/125 sec

Flash Modes

Flash On, Flash On+Red-eye Reduction, Slow-speed Sync, Slow-speed Sync+Red-eye, P-TTL, Trailing Curtain Sync, contrast-control-sync, high-speed sync, wireless sync (available with a dedicated external flash)

Viewfinder Coverage

Approximately 98%

Video Resolution

Full HD: (1920×1080, 60i/50i/30p/25p/24p) HD: (1280×720, 60p/50p/30p/25p/24p)

Image Stabilization

Lens-shift type (when using SR system lens)

Drive Mode

Single Frame, Continuous (H, L), Self-timer (12 sec., 2sec.), Remote Control (immediately, 3 sec., continuous), Multi-exposure (available with Continuous, Self-timer or Remote Control), Interval Shooting, Interval Composite

Storage Media

SD, SDHC*, SDXC* memory card, Eye-Fi card, FLUCARD (*UHS-I compatible) Dual Card Slot: Sequential save, Save to Both Dual save, Separate RAW/JPG, Copying images between slots possible

Box Dimensions (LxWxH)

10.0 x 9.291 x 8.583″

Video Recording Time

Up to 25 minutes


PENTAX 645AF2, 645AF and 645A mount lenses PENTAX 67 medium format lenses useable with adapter SDM function: Yes

External Flash

Hotshoe (P-TTL), high speed sync and wireless with PENTAX dedicated flash, X-Sync Socket

Remote Control

Yes – infrared (0 seconds, 3 seconds, continuous), cable switch

Live View Field of View


Exposure Modes

Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority, Manual, Bulb, Flash X-sync Speed, USER1, USER2, USER3

LCD Monitor

3.2″ 1037k-Dot Tiltable TFT Color LCD


JPEG: L (51M: 8256 x 6192), M (36M: 6912 x 5184), S (21M: 5376 x 4032), XS (3M: 1920 x 1440) RAW: L (51M: 8256 x 6192) TIFF: L (51M: 8256 x 6192)

Focus Area

Spot, Select, Expanded Area AF (S, M, L), Zone Select, Auto (27 AF Points)

Power Supply

Rechargeable Li-Ion battery D-LI90 AC adapter available: AC Adapter Kit K-AC132 (Optional)

ISO Sensitivity

Auto, 100 to 204,800 (EV steps can be set to 1EV, 1/2EV, or 1/3EV)

Live View Autofocus

Contrast detection AF (Face Detection, Tracking, Multiple AF Points, Select, Spot Focus Peaking: On/Off


EV -3 to 18 (ISO 100, at normal temperature)

Lens Mount

PENTAX 645AF2 mount with AF coupler, lens information contacts, and power contacts (stainless steel)

Focus System

SAFOX II TTL phase-matching autofocus with 27 AF points (25 cross type focus points in the center)

Computer System Requirements

Windows: Windows 8.1 (32 bit/64 bit) / Windows 8 (32 bit/64 bit) / Windows 7 (32 bit/64 bit) / Windows Vista (32 bit/64 bit), Intel Core 2 Quad or higher, 4GB or more Mac: Mac OS X 10.9 /10.8 / 10.7 / 10.6, Intel Core 2 Quad or higher, 4GB or more

Exposure Bracketing

2, 3, or 5 frames, Available with Continuous, Self-timer, or Remote Control

Dust Removal

Image sensor cleaning using ultrasonic vibrations “DR II” with the Dust Alert function

Burst Rate

3 fps, JPEG ( L: ★★★ at Continuous H): up to 30 frames, RAW: up to 10 frames, TIFF: up to 12 frames

AE Lock

Button type (timer-control: two times the meter operating time set in Custom Setting), Continuous as long as the shutter release button is depressed halfway


6.1 x 4.6 x 4.8″ / 15.5 x 11.7 x 12.2 cm (excluding protrusions)

Camera Type

TTL autofocus, auto-exposure medium format digital SLR camera

Eye-Relief Length

Approximately 21 mm (from view window) Approximately 24.1 mm (from center of lens)


43.8 x 32.8 mm CMOS

Flash Exposure Compensation

-2 to +1 EV (1/2 steps)

Material of Construction

Magnesium alloy shell over aluminum chassis


54.7 oz / 1.55 kg (including battery and memory card)

Metering Range

EV -1 to 21 (ISO 100 at 55mm f/2.8)

Weather Resistant

Yes – 76 special seals

Focusing Screen

Standard: Interchangeable Natural-Bright-Matte focusing screen

Image Quality

JPEG: ★★★ (Best), ★★ (Better), ★ (Good), RAW + JPEG simultaneous recording available RAW: PEF, DNG

Shutter Speeds

Auto: 1/4000 to 30 sec. Manual: 1/4000 to 30 sec. (1/3 EV steps or 1/2 EV steps) Bulb


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