Sony A99 II Review

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Sony A99 II specifications


Sensor    42.4MP full-frame Exmor R CMOS sensor (35.9 x 24.0mm)

Focal length conversion on lens    1x

Memory    1x multislot for Memory Stick Pro Duo/SD, 1x SD card slot

Viewfinder    XGA OLED, 2,359k dots

Max video resolution    4K (UHD)
3,840 x 2,160

ISO range    100-25,600
(50-102,400 expanded)

Autofocus    Hybrid Phase Detection AF, 79-point/399-point, 15/79 cross-type

Max burst rate    12fps

Screen    3-inch articulating TFT,
1,229k dots

Shutter speeds    30-1/8,000 sec, Bulb

Weight    849g (body only, with battery and memory card)

Dimensions    143 x 104 x 76mm

Power supply  NP-FM500H lithium-ion battery (supplied)

Sony A99 II lab tests

We use Imatest and DxO Analyzer hardware and software to test cameras for their colour accuracy (colour error) signal to noise ratio (the amount of noise in the images) and dynamic range (their ability to capture detail in very bright and dark areas). We also pick three rival cameras to test them against. 

Colour error

We tested the Sony A99 II against four key rivals: the Canon EOS-1D X II, Nikon D5 and Sony A7R II.  The A99 II came out on top in the colour error test, producing the most neutral colours of all four cameras we compared. To be fair, all but the Nikon D5 scored very well.

Signal to noise ratio

The A99 II came third for noise, though the results were still good. The high megapixel count and small light loss through the translucent mirror are the culprits.

Dynamic range

The dynamic range figures are much closer and unlikely to be apparent in real-world results. The larger photosites of the EOS-1D X II appear to yield a small advantage.

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