Sigma A 24-70 mm f/2.8 DG DN review - Introduction

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Sigma A 24-70 mm f/2.8 DG DN

22 January 2020

Arkadiusz Olech

1. Introduction

Full frame f/2.8 24-70 mm lenses can be called obligatory instruments for most of professional journalists and/or their agencies. Small wonder all well-known producers try to feature such devices in their line-up. What's more, they strive to equip them with the newest technologies, the more the better: top-end optics, fast autofocus, weather-sealing gaskets, hydrophobic coatings, in short everything and anything to keep their most demanding customers satisfied.

The third-party manufacturers also don't miss such an opportunity. Sigma company have had as many as five lenses with such or similar parameters – their full list we present in the following chart.

Small wonder the new, full frame, mirrorless systems started to feature 24-70 mm instruments very soon. Sigma knew that entering the market with their new L-mount system they would have to offer a similar device and rather sooner than later. As the mirrorless construction had been already designed, all they needed was to add another type of mount. As a result in November 2019 they anounced the launch of the Sigma A 24-70 mm f/2.8 DG DN, available in two versions, L-mount and Sony FE.

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We would like to thank the Sigma ProCentrum company for sending us the final specimen of the lens for testing; results of our work you can find in the following chapters – enjoy your reading!

You are also invited to get acquainted with our test procedure, described in the article "How do we test lenses?" If you feel it’s still not enough, please go to our FAQ section where you can find some further explanation.