20 Oct Sigma 18-50mm F2.8 DC DN: hands-on with the lens that wants to replace your kit zoom

Source: DP Review

Introduction

The Sigma 18-50mm F2.8 DC DN | C is the latest addition to Sigma’s ‘Contemporary’ range of affordable lenses. The ‘DN’ in the name stands for ‘Digital Native’ and denotes that it’s designed for mirrorless cameras while the ‘DC’ indicates that it covers and APS-C sensor. The 18-50mm focal length range is equivalent to 27-75mm in full-frame terms, making it a useful, fast standard zoom.

It will be available for the Leica/Panasonic/Sigma L mount but it’s the E-mount version we’re most interested in, since there are so many APS-C Sony cameras that would benefit from a small, fast lens.

Size

And the Sigma 18-50mm F2.8 is impressively small. It’s around 75mm long at its shortest (zoomed out to the 18mm setting) and just over 65mm wide, meaning it doesn’t create an overly large or unbalanced combination when mounted on the likes of the Sony a6600, as seen here.

Design

The 18-50mm uses 13 elements in 10 groups, with one ‘SLD’ super-low dispersion element and three aspherical elements. Sigma says it has minimized the number of elements and that this, combined with digital correction of geometric distortion and lateral chromatic aberrations, results in a lightweight lens that delivers ‘superb optical quality.’

E-mount owners will need to ensure that ‘Shading Comp.’ and ‘Distortion Comp.’ are turned on in ‘Lens Comp.’ sections of their cameras’ menus, to ensure the camera applies the corrections that make up part of the lens’ design.

Weight

Sigma 18-50mm F2.8 DC DN: hands-on with the lens that wants to replace your kit zoom posted on DP Review on .

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