Pentax K-3 Mark III Digital SLR Camera Body Only - Black

Pentax K-3 Mark III Digital SLR Camera Body Only - Black

Key Features

  • 25.7MP CMOS APS-C Sensor
  • ISO 100 to 1,600,000
  • 5.5-stops of in-body shake reduction
  • 4K Video up to 30p
  • Dual SD slots for SD, SDHC and SDXC
  • 3.2 inch LCD monitor
  • USB-C Charging and Power Supply
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Bundled Items

Total Price £1,899.00
MPN Code 1050
EAN Code 027075302303
SKU 26727-2518-11478

Pentax K-3 Mark III Digital SLR Camera Body Only

The Pentax K-3 Mark III sets new standards in the DSLR APS-C space. Aimed at enthusiasts and professionals that have an unrivalled passion for photography, the K-3 Mark III builds on its predecessor with more megapixels, higher ISO and of course, upgraded video capabilities.

The Pentax K-3 Mark III also comes as a European Kit. This includes the Body plus a battery grip and second battery. Read more about this kit here >

Professional-level Image Quality

With 25.73 effective megapixels, the back-illuminated sensor produces incredibly sharp images with very low levels of noise. When this performance is paired with an ISO range of 100 to a super-high 1,600,000 you can rest assured that the K-3 Mark III will produce professional-level images in daylight and when working in low-light situations. For significantly higher resolution images and better colour rendition, the Mark III features Pixel Shift functionality. What is Pixel Shift?


The K-3 Mark III’s utilises a newly developed SAFOX 13 phase comparison autofocus system. There are a total of 101-point (25 cross-type positioned centrally) phase-matching autofocus points and in order to focus reliably when shooting in low-light or at night, three special sensors are centrally positioned which already work at an EV of -4.

The Mark III also features a joystick on the rear for the first time. This allows the users to manually select the focus points.

Even subjects that are in motion can be captured easily as the new AF system is supported by a new RGB-Ir image sensor with approx. 307,000 pixels plus a newly developed image tracking algorithm. 

Image Stabilisation

The in-built Shake Reduction System prevents camera shake that can easily occur when working with slow shutter speeds or even with longer focal length lenses. The K-3 Mark III’s Image Stabilisation works across 5-axis. In addition to sensor rotation, horizontal and vertical shift, the K-3 Mark III also features horizontal and vertical tilt correction which can occur when shooting style of photography such as macro. 

The image stabilisation system allows for up to 5.5EV stops of stabilisation. Making handheld images and video even easier to obtain and keep looking sharp and precise. 

Movie Capabilities

With the ability to record 4K at a cinematic 24p and 30p, the Pentax K-3 Mark III can also film up to 60p in Full HD. The Mark III has a built-in stereo mic and is compatible with external stereo recording via the 3.5mm mic jack. The recording sound level is adjustable and also includes Wind Noise Reduction for those filming outside.

One of the two SD card slots is prepared for the UHS-II standard in order to be able to process the data volumes at high frame rates or video recordings accordingly.

Pentaprism Viewfinder

The Mark III’s optical viewfinder provides approx 100% coverage and a 1.05x magnification. Whilst using the OVF, you’re able to view the AF Points, Grid Display, Electronic Level, AF Frame, Spot Metering Frame, Crop, Smart Function and Operation Control Lock.

The high-refractive-index glass prism allows for wide relief while providing a wide field of view, equivalent to that of a 35mm full-frame DSL camera. The viewfinder delivers a clear and life-like image without distortion thanks to a distortion-correcting optical element that optimises the lens coatings. Brightness has been improved by almost 10% compared to the viewfinder from its predecessor.

LCD Monitor

The rear 1620K-dot 3.2-inch LCD monitor allows for real-time viewing of your subject or scene in high-resolution. The LCD monitor is touchscreen-enabled with intuitive menu control and image zoom function during image playback.

High frame rate 

The Pentax K-3 Mark III makes it possible to capture fast-moving subjects like never before. A newly redesigned mirror and shutter mechanism, combined with the new processor technology and fast image processing allows the Mark III to shoot 32 RAW files at up to 12fps. At 2.5 frames per second in JPG, the camera can capture 90 images before the camera has to save. Despite this high workload, the shutter is designed to last for at least 300,000 shots. 

Lightweight and Portable

The Body Only comes in at 735g which makes the K-3 Mark III lightweight and portable. The APS-C sensor allows for a smaller body than the likes of the full-frame Pentax K-1 II. A weatherproof housing construction allows the K-3 III to be resistant to temperatures as low as -10ºC and has 95 seals that protect against dust and moisture.

Power for YOUR creativity

The rechargeable lithium-ion battery D-LI90 records approx. 800 images and allows for up to 250 minutes of playback. Recharge via USB-C so you have less need for cables and chargers when you’re on the move and keep the Mark III powered when in-use.


The Pentax K-3 Mark III features Wifi and Bluetooth connectivity for fast and efficient file sharing and uploading. The Mark III also features an HDMI port and USB-C for data sharing.

What is Pixel Shift?

The Pentax K-3 Mark II featured Pixel Shift functionality for the first time. In the Mark III this feature has been improved to be able to be used without a tripod. The Pixel Shift function in the K-3 III offers the possibility of taking four shots in a row, the sensor shifts up, down, left and right by one pixel at a time whilst the camera calculates a single image (in-body processing) which can be saved as a JPG or RAW file.

View the full specifications here >

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Pentax K-3 Mark III Digital SLR Camera Body Only - Black reviews verified by reevoo
Verified reviews of Pentax K-3 Mark III Digital SLR Camera Body Only - Black

out of 10

3 reviews

Value for money
Overall rating
Scores 10.0 out of 10 based on 3 reviews
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out of 10


Belfast GB
The optical viewfinder (it made me laugh when I first used it, it's that good)
The image quality.
Without a doubt the best camera I've ever owned.
I haven't used it enough to give an in-depth "review"
Nothing so far.
Confirmed purchase: 02 September 2021
Published on: 25 September 2021
out of 10

Kenneth Paul

Choppington GB
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. 101 focus points to choose from, fast burst rate up to 12fps & new shutter release which is perfect. All in all a superb dslr.
Confirmed purchase: 23 April 2021
Published on: 03 May 2021
out of 10


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

Oh and 12fps, so fast I can finally nail birds in flight much faster.
The price is a bit steep, on Tav iso is a bit high, and highlights can sometimes blow out.
Confirmed purchase: 22 April 2021
Published on: 02 May 2021

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