Sigma 45mm f2.8 DG DN review

This light and compact lens offers excellent image quality for an affordable price - what's the catch?!

Sigma 45mm f2.8 DG DN review
(Image: © Future)

Digital Camera World Verdict

Boasting great image quality and a robust build, the Sigma 45mm f/2.8 proves that good things truly do come in small packages. While we may be used to seeing fantastically wide maximum apertures from Sigma, this understated 45mm f/2.8 more than holds its own against its more glamorous cousins. While we may have small quibbles with the lens' vignetting and slight distortion, we would snap this beautiful piece of glass up in a heartbeat.


  • +

    Small, light and compact

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    Sturdy, aluminum build

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    Great image quality


  • -


  • -

    Slight distortion

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    Aperture ring isn't stepless

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Small, light and relatively fast, the Sigma 45mm f/2.8 is an all-round solid lens that could easily be overshadowed by its more overtly impressive counterparts - but this would be a mistake. 

Sitting within Sigma's Contemporary lens lineup, the 45mm f/2.8 is available for both the Sony E-mount and the L-mount (for Panasonic, Sigma and Leica cameras). This means the lens can be used on any Sony, Panasonic, Sigma or Leica full-frame mirrorless camera. As of yet, there have been no announcements regarding whether the Sigma 45mm f/2.8 will also be made available in R or Z mounts. 

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Louise Carey

With over a decade of photographic experience, Louise arms Digital Camera World with a wealth of knowledge on photographic technique and know-how – something at which she is so adept that she's delivered workshops for the likes of ITV and Sue Ryder. Louise also brings years of experience as both a web and print journalist, having served as features editor for Practical Photography magazine and contributing photography tutorials and camera analysis to titles including Digital Camera Magazine and  Digital Photographer. Louise currently shoots with the Fujifilm X-T200 and the Nikon D800, capturing self-portraits and still life images, and is DCW's ecommerce editor, meaning that she knows good camera, lens and laptop deals when she sees them.