Pentax K-3 Mark III DSLR Camera (Black)

Model: 01051

Pentax Warranty - USA Version
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Viewfinder Magnification Approx. 1.05x
Viewfinder Coverage 100%
Viewfinder Type Optical (Pentaprism)
Viewfinder Eye Point 20.5 mm
Diopter Adjustment -4 to +1


Recording Limit Up to 25 Minutes
Video Encoding NTSC
Audio Recording Built-In Microphone (Stereo)
External Microphone Input (Stereo)
Recording Modes H.264/MOV
UHD 4K (3840 x 2160) at 23.976p/29.97p
Full HD (1920 x 1080) at 23.976p/29.97p/59.94p


Weight 1.8 lb / 820 g (Body with Battery and Memory)
1.6 lb / 735 g (Body Only)
Dimensions (W x H x D) 5.3 x 4.1 x 2.9" / 134.5 x 103.5 x 73.5 mm
Battery 1 x D-LI90 Rechargeable Lithium-Ion, 7.2 VDC, 1860 mAh (Approx. 800 Shots)

Packaging Info

Box Dimensions (LxWxH) 8.3 x 6.5 x 5.1"
Package Weight 3.035 lb


Size 3.2"
Display Type Fixed Touchscreen LCD
Resolution 1,620,000 Dot


Media/Memory Card Slot Slot 1: SD/SDHC/SDXC (UHS-II)
Wireless Wi-Fi
Connectivity USB Type-C (USB 3.2 Gen 1), HDMI D (Micro), 3.5mm Headphone, 3.5mm Microphone, 2.5mm Sub-Mini, PC Sync Socket


Lens Mount Pentax K
Camera Format APS-C (1.5x Crop Factor)
Sensor Resolution Actual: 26.78 Megapixel
Effective: 25.73 Megapixel (6192 x 4128)
Aspect Ratio 3:2
Sensor Type CMOS
Sensor Size 23.3 x 15.5 mm
Image File Format DNG, JPEG, Raw
Bit Depth 14-Bit
Image Stabilization Sensor-Shift, 5-Axis


Autofocus Sensitivity -4 to +18 EV
Autofocus Points Phase Detection: 101 (25 Cross-Type)
Focus Mode Continuous-Servo AF (C), Manual Focus (M), Single-Servo AF (S)
Focus Type Auto and Manual Focus


External Flash Connection Hot Shoe, PC Terminal
Built-In Flash No
Flash Modes Auto, Auto/Red-Eye Reduction, Flash On, Flash On w/ Red-Eye Reduction, Hi-Speed Sync, Slow Sync, Slow Sync/Red-Eye Reduction, TTL Auto, Wireless
Maximum Sync Speed 1/200 Second
Flash Compensation -2 to +1 EV (1/3, 1/2 EV Steps)
Dedicated Flash System P-TTL

Exposure Control

ISO Sensitivity Auto, 100 to 1600000
Mirror Lock-Up Yes
Interval Recording Yes
Continuous Shooting Mechanical Shutter
Up to 12 fps at 25.7 MP for up to 37 Frames (JPEG) / 32 Frames (Raw)
Mechanical Shutter
Up to 7 fps at 25.7 MP for up to 60 Frames (JPEG) / 37 Frames (Raw)
Mechanical Shutter
Up to 2.5 fps at 25.7 MP for up to 90 Frames (JPEG) / 39 Frames (Raw)
White Balance Auto, CTE, Cloudy, Color Temperature, Daylight, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Manual, Multi Auto WB, Shade, Tungsten
Metering Range -3 to 20 EV
Metering Method Center-Weighted Average, Highlight Weighted, Multi-Zone, Spot
Shutter Speed Mechanical Shutter
1/8000 to 30 Seconds
0 to 20 Minutes in Bulb Mode
Self-Timer 2/12-Second Delay
Exposure Compensation -5 to +5 EV (1/3, 1/2 EV Steps)
Exposure Modes Aperture Priority, Auto, Manual, Program, Sensitivity Priority, Shutter Priority


Operating Temperature 14 to 104°F / -10 to 40°C
Operating Humidity 0 to 85%
Expert Reviews
Pc magazine.34972991
16 June 2021

The Pentax K-3 Mark III includes the company's best-yet autofocus system and a sturdy, all-weather build. It's a worthwhile upgrade for devoted Pentax users, but others should look elsewhere.

  • +

    Stabilized 25.7MP image sensor, Wide-spread autofocus, 10fps continuous shooting, High-magnification optical viewfinder, Magnesium body with dust and splash protection, In-camera USB-C charging

  • -

    Shaky viewfinder with unstabilized lenses, 4K video doesn't use full sensor width, Only one card slot supports UHS-II speed, Many compatible lenses showing their age, Omits built-in GPS for Astrotracer, External battery charger not included, Buffer fills quickly at 10fps

8 April 2021

First introduced in March 2021 , Pentax K-3 Mark III is a 26.0MP Advanced DSLR camera with a APS-C (23 x 15.5 mm ) sized CMOS sensor, built-in Image Stabilization, weather sealed body and Pentax KAF2 lens mount. Pentax replaced the older K-3 II with this model.

  • +

    Built-in Wireless (Wi-fi), Bluetooth Connectivity, Image Stabilization, Video, Touch Screen, Optical Built-in Viewfinder, Face Detection Focusing, 26.0MP - High Resolution Sensor, 1.600.000 Max ISO, 101 Focus Points, Large 3.2″ Screen, 1.620k dots LCD Resolution, 1/8000s High Shutter Speed, 12.0fps...

  • -

    No Articulating Screen, Heavy Body: 820g

3 weeks ago

For those looking for a DSLR, then the Pentax K-3 III is one of the best APS-C DSLRs available, with a 25.7mp APS-C BSI CMOS sensor and Shake Reduction (SR) system, giving great image quality, with low levels of noise, and excellent colour reproduction.

  • +

    Shake Reduction (SR) System, New 26mp BSI CMOS Sensor, Up to 12fps continuous shooting, Excellent handling and ergonomics and (mostly) good control system, Weather-sealed camera body, 1.05x magnification OVF, Built-in Help System in the menus, Updated AF system

  • -

    No external charger (USB, in-camera charging), A tilting screen would be useful to some, Shallow viewfinder relief, Price compared to the previous version (and competition), Included software on the camera's internal memory, the leaflet doesn't tell you this, Small buffer for continuous shooting, No...

12 July 2021

Does this high-end APS-C DSLR make any sense in the face of more affordable full-frame alternatives? Andy Westlake takes a detailed look

  • +

    Large, clear viewfinder, Robust weather-sealed build, Comprehensive array of external controls, Works with a huge range of K-mount lenses, In-body image stabilisation works with every lens

  • -

    Rear screen doesn’t tilt, Poor autofocus performance in live view, Extremely expensive at launch

User Reviews
7 June 2021

  • +

    Fast autofocus, great focus tracking, well designed, usual great quality Pentax build.

2 June 2021

This is a review after shooting with the camera for a month. I took already about 8000 images with a lot of different old and modern Pentax lenses. I have extensive previous experience with Pentax K-1, K-7 and Ds but also Sony A6300.

5 May 2021

This is a great camera, the OVF is huge and clear, the ergonomics are superb, totally delighted with its capabilitiesWex went out of their way to get this camera to me, a level of service that was much appreciated.

3 May 2021

  • +

    Fast focusing, great ergonomics, lightweight & great for wildlife & sports photography. AF continuous mode is greatly improved as is the lcd rear screen. The menu layout is simpler than the k3ii as well.

2 May 2021

  • +

    Massive upgrade on previous, especially auto focus which is fast, the touchscreen which looks amazing, and a lot more features to play with.

Product Highlights
  • 25.7MP APS-C BSI CMOS Sensor
  • SAFOX 13 101-Point Phase-Detection AF
  • 1.05x-Mag. Pentaprism Optical Viewfinder
  • 3.2" 1.62m-Dot Touchscreen LCD
  • Up to 12 fps Continuous Shooting
  • 5-Axis SR II In-Body Shake Reduction
  • UHD 4K30p Video Recording
  • Pixel Shift Res., AA Filter Simulator
  • Wi-Fi & Bluetooth; Dual SD Card Slots
  • Weather-Sealed Magnesium-Alloy Body
Average Expert Score
Average User Score
In The Box
  • Pentax K-3 Mark III DSLR Camera (Black)
  • Pentax D-LI90(E) Lithium-Ion Battery (7.2V, 1860mAh)
  • Triangular Ring
  • AC-U2 USB Power Adapter and Power Plug
  • I-USB166 USB Cable
  • Finder Cap
  • O-ST162 Strap
  • FU Eyecup
  • FK Hot Shoe Cover
  • KII Body Cap
  • 2P Sync Terminal Cap
  • Protective Cover
  • Battery Grip Connector Cover
  • Limited 1-Year Warranty
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