March 8, 2017
Sigma sd Quattro review
Andy Westlake tests Sigma’s unconventional SA-mount mirrorless camera, the sd Quattro
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February 9, 2017
Sigma 500mm f/4 DG OS HSM Sport Field Test
Michael Topham tests Sigma's new flagship telephoto lens on a wildlife assignment
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December 8, 2016
Sigma 12-24mm f/4 DG HSM Art review
Michael Topham puts Sigma's latest ultra wide-angle zoom through its paces
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June 2, 2016
Sigma 50-100mm f/1.8 DC HSM | A Review
Michael Topham puts Sigma's latest zoom with a constant f/1.8 aperture to the test
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November 23, 2015
Sigma 20mm f/1.4 DG HSM | A Review
Sigma has created a world first with its latest wideangle prime lens. Michael Topham puts it to the test
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September 24, 2015
Sigma 24-35mm f/2 DG HSM | A Review
Is the Sigma 24-35mm f/2 DG HSM | A lens a viable alternative to the manufacturer’s wideangle primes? Michael Topham finds out
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March 9, 2015
Sigma 24mm f/1.4 DG HSM | A review
Andy Westlake investigates the latest addition to Sigma’s ‘Art’ line of high-quality fast primes
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November 26, 2014
Sigma 150-600mm f/5-6.3 DG OS HSM S Field Test
The new Sigma 150-600mm f/5-6.3 DG OS HSM S has caused quite a stir among wildlife and sports photographers of late, but is it as good as its huge focal length suggests? Michael Topham subjects…
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August 8, 2014
Sigma 24-105mm f/4 DG OS HSM|A review
In our Sigma 24-105mm f/4 DG OS HSM|A review, Andy Westlake tests, the latest lens in Sigma’s Art series – a general-purpose image-stabilised zoom that’s designed for use on full-frame DSLRs
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August 4, 2014
Sigma dp2 Quattro review
The Sigma dp2 Quattro replaces the previous-generation DP2 Merrill, with a radically reworked sensor and strikingly unconventional body. In our Sigma dp2 Quattro review Andy Westlake takes it for a test drive
