Pentax K-S1 review

Flashing lights, different colours, are all these gimmicks hiding a decent camera?

Pentax K-S1

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We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using DXO Analyzer software to generate the data to produce the graphs below.

The four rival cameras we chose for this comparison are the Nikon D3300, Canon 700D and Panasonic G6.

A high signal to noise ratio (SNR) indicates a cleaner and better quality image.

For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.

JPEG dynamic range

Pentax K-S1 dynamic range

Analysis: The Pentax falls roughly in the middle of the group for JPEG dynamic range, though it's worth noting that it does have an opitonal 200% dynamic range option which works alongside the ISO adjustment.

RAW (converted to TIFF) dynamic range

Pentax K-S1 dynamic range

Analysis: The raw dynamic range results are more impressive, placing the Pentax K-S1 right at the top of the group, closely matching the results of the Canon 700D.

JPEG signal to noise ratio

Pentax K-S1 signal to noise ratio

Analysis: The Pentax shows very good noise control in JPEG images, beating both the Nikon D3300 and Canon 700D and closely matching the Panasonic G6.

RAW (converted to TIFF) signal to noise ratio

Pentax K-S1 signal to noise ratio

Analysis: The Pentax's signal to noise ratio is equally impressive in its raw files. It's at the top of the charts again, this time matched by the Canon 700D.

Amy Davies

Amy has been writing about cameras, photography and associated tech since 2009. Amy was once part of the photography testing team for Future Publishing working across TechRadar, Digital Camera, PhotoPlus, N Photo and Photography Week. For her photography, she has won awards and has been exhibited. She often partakes in unusual projects - including one intense year where she used a different camera every single day. Amy is currently the Features Editor at Amateur Photographer magazine, and in her increasingly little spare time works across a number of high-profile publications including Wired, Stuff, Digital Camera World, Expert Reviews, and just a little off-tangent, PetsRadar.