Andy Westlake tests Pentax's latest fully featured mid-range DSLR with in-body image stabilisation

Product Overview

Overall rating:

Pentax K-70

Features:9/10
Build/Handling:8/10
Metering:8/10
Autofocus:7/10
AWB Colour:7/10
Dynamic Range:8/10
Image quality:8/10
LCD viewfinder:9/10

Pros:

  • Effective in-body image stabilisation that works with every lens
  • Large, bright viewfinder is the best in class
  • Good contingent of external controls makes it easy to change settings

Cons:

  • Relatively slow and clunky live view
  • In-camera JPEG processing needs a lot of twekaing for the best results
  • LCD screen isn't touch sensitive

Product:

Pentax K-70 review

Manufacturer:

Price as reviewed:

£559.00 (body only)

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Pentax K-70 – Pixel Shift Resolution

Pentax K-70 sample image

Pixel Shift Resolution mode captures finer detail, while enabling Motion Correction substantially reduces image artefacts

The Pentax K-70 includes the Pixel Shift Resolution system previously seen on the K-3 II and full-frame K-1. In almost all cameras, the light-sensitive pixels capture red, green or blue light, and a full-colour image is built 
up using a clever process of interpolation between them. But this can give rise to softness and artefacts when examining images closely at the pixel level.

Pixel Shift Resolution 
mode, however, combines the information from four exposures that are made by moving the sensor by precisely one pixel between each in a square pattern. This allows the sampling of full-colour image information at each pixel location in the final image, which gives much-improved image quality. The camera has to be fixed on a tripod for it to work, but like the full-frame K-1, the K-70 includes a motion-correction setting that takes into account subjects that move between the exposures.

In practice, the system works well, although naturally you’ll need a good lens to make the most of it. Images taken in Pixel Shift Resolution mode show visibly finer detail, and the motion-correction setting dramatically reduces image artefacts on moving 
leaves or water, although it 
doesn’t quite eliminate them. Because of this, it’s still best 
suited to static subjects such 
as still life or architecture.

  1. 1. At a glance
  2. 2. Pentax K-70 - Features
  3. 3. Pentax K-70 - Viewfinder and screen
  4. 4. Pentax K-70 - Build and handling
  5. 5. Pentax K-70 - Autofocus
  6. 6. Pentax K-70 - Performance
  7. 7. Pentax K-70 - Pixel Shift Resolution
  8. 8. Pentax K-70 review - Dynamic range, resolution and noise
  9. 9. Pentax K-70 - Verdict
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