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.
|Camera Type||TTL autofocus, auto-exposure medium format digital SLR camera|
|Sensor||43.8 x 32.8 mm CMOS|
|Color Depth||JPEG: 8 bits/channel
RAW: 14 bits/channel
|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
|Resolution||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)
|Image Quality||JPEG: ??? (Best), ?? (Better), ? (Good), RAW + JPEG simultaneous recording available
RAW: PEF, DNG
|Video Resolution||Full HD: (1920x1080, 60i/50i/30p/25p/24p)
HD: (1280x720, 60p/50p/30p/25p/24p)
|Video Recording Time||Up to 25 minutes|
|Dust Removal||Image sensor cleaning using ultrasonic vibrations "DR II" with the Dust Alert function|
|Lens Mount||PENTAX 645AF2 mount with AF coupler, lens information contacts, and power contacts (stainless steel)|
|Lenses||PENTAX 645AF2, 645AF and 645A mount lenses PENTAX 67 medium format lenses useable with adapter
SDM function: Yes
|Image Stabilization||Lens-shift type (when using SR system lens)|
|Metering System||TTL open aperture metering using 86K pixel RGB sensor|
|Metering Range||EV -1 to 21 (ISO 100 at 55mm f/2.8)|
|Metering Modes||Multi-segment metering, Center-weighted metering, Spot metering|
|Exposure Compensation||±5 EV (1/3 EV steps or 1/2 EV steps)|
|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|
|Exposure Bracketing||2, 3, or 5 frames, Available with Continuous, Self-timer, or Remote Control|
|ISO Sensitivity||Auto, 100 to 204,800 (EV steps can be set to 1EV, 1/2EV, or 1/3EV)|
|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.
|Shutter Type||Electronically controlled, vertical-run, focal plane shutter|
|Shutter Speeds||Auto: 1/4000 to 30 sec.
Manual: 1/4000 to 30 sec. (1/3 EV steps or 1/2 EV steps)
|Exposure Modes||Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority, Manual, Bulb, Flash X-sync Speed, USER1, USER2, USER3|
|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|
|Self Timer||Yes - 12 seconds, 2 seconds|
|Remote Control||Yes - infrared (0 seconds, 3 seconds, continuous), cable switch|
|Burst Rate||3 fps, JPEG ( L: ??? at Continuous H): up to 30 frames, RAW: up to 10 frames, TIFF: up to 12 frames|
|Focus System||SAFOX II TTL phase-matching autofocus with 27 AF points (25 cross type focus points in the center)|
|AF Modes||Single AF (AF.S), Continuous AF (AF.C), Manual, Focus operation customizable|
|Focus Area||Spot, Select, Expanded Area AF (S, M, L), Zone Select, Auto (27 AF Points)|
|Brightness||EV -3 to 18 (ISO 100, at normal temperature)|
|Viewfinder Type||Kepler-telescopic, trapezoid prism finder|
|Viewfinder Coverage||Approximately 98%|
|Viewfinder Magnification||0.62x (55mm f/2.8 at infinity); 0.85x (75mm f/2.8 at infinity)|
|Focusing Screen||Standard: Interchangeable Natural-Bright-Matte focusing screen|
|Diopter Adjustment||-3.5 m to + 2.0 m-1|
|Depth of Field Preview||Optical (diaphragm stop-down), Digital|
|Eye-Relief Length||Approximately 21 mm (from view window)
Approximately 24.1 mm (from center of lens)
|LCD Monitor||3.2" 1037k-Dot Tiltable TFT Color LCD|
|Electronic Level||Displayed in viewfinder and LCD panel (horizontal direction only); displayed on LCD monitor (horizontal direction and vertical direction)|
|Live View||TTL using CMOS image sensor|
|Live View Field of View||100%|
|Live View Autofocus||Contrast detection AF (Face Detection, Tracking, Multiple AF Points, Select, Spot
Focus Peaking: On/Off
|External Flash||Hotshoe (P-TTL), high speed sync and wireless with PENTAX dedicated flash, X-Sync Socket|
|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)|
|Flash Exposure Compensation||-2 to +1 EV (1/2 steps)|
|Flash Synch Speeds||1/125 sec|
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