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Pentax K-3 II Review

August 5, 2015

Overall Rating:

4.5

Pentax K-3 II


Pros:

  • + In-body image stabilisation
  • + Quick autofocusing system
  • + Pixel Shift Resolution feature
  • + Unique astrotracer feature for astrophotography

Cons:

  • - No touch/Articulation to LCD screen
  • - No Wi-Fi/NFC connectivity
  • - Only 27 autofocusing points

Manufacturer:

Manufacturer:

The Pentax K-3 II aims to improve on the K-3 with better continuous autofocusing, in-body image stabilisation and never before seen features like Pixel Shift Resolution and Astrotracer. Callum McInernery-Riley investigates

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Noise

JPEG images from the Pentax Prime III processor can have multiple issues which cause a lack of detail in images such as clipping in colour channels and in-camera noise reduction. However, it’s possible to control noise and achieve detailed images shooting in raw and post-processing.

At ISO sensitivities between ISO 100-800, there is some luminance noise present in the raw files but it’s very slight and only obvious at ISO 1,600 and above. I would happily use this camera right up to 6,400 without worrying too much about colour or luminance noise, but thereafter I would take measures to keep it lower.

Below are 100% crops from our test scene across the full range of ISO sensitivities.

Pentax_K3 II__Native_Diorama_100

Pentax K-3 II noise – ISO 100

Pentax_K3 II__Native_Diorama_200

Pentax K-3 II noise – ISO 200

Pentax_K3 II__Native_Diorama_400

Pentax K-3 II noise – ISO 400

Pentax K-3 II noise – ISO 800

Pentax K-3 II noise – ISO 800

Pentax K-3 II noise – ISO 1600

Pentax K-3 II noise – ISO 1600

Pentax K-3 II noise – ISO 3200

Pentax K-3 II noise – ISO 3200

Pentax K-3 II noise – ISO 6400

Pentax K-3 II noise – ISO 6400

Pentax K-3 II noise – ISO 12,800

Pentax K-3 II noise – ISO 12,800

Pentax K-3 II noise – ISO 25,600

Pentax K-3 II noise – ISO 25,600

Pentax K-3 II noise – ISO 51,200

Pentax K-3 II noise – ISO 51,200

  • Sensor: 24.35 MP APS-C-sized CMOS
  • Output size: 6016 x 4000
  • Focal length mag: 1.5x
  • Lens mount: Pentax K-mount
  • File format: Raw (Adobe DNG or PEF) JPEG
  • Shutter speeds: 30-1/8,000sec
  • ISO: ISO 100-51,200
  • Exposure modes: PASM, TAV, bulb, X sync, auto, scene modes
  • Metering sensor: 86,000-pixel RGB Matrix sensor
  • Metering modes: Multi, centreweighted, spot
  • Exp comp: ±/5EV
  • Drive: 8.3fps
  • Video: Full HD 1080p 60i/50i/30p/25p/24p
  • Viewfinder: Pentaprism viewfinder – 100% 0.95x magnification
  • AF points: 27 AF points (25 cross type)
  • Display: 1.04-million-dot, 3.2in TFT LCD
  • Memory card: SD, SDHC, SDXC
  • Dimensions: 131.5 x 102.5 x 77.5mm
  • Weight: 800g with battery and card

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