An Astrophotography Review of the Sigma 40mm f/1.4 DG HSM Art Lens

It takes more than a wide aperture and the right focal length to make a good astrophotography lens. Sigma’s 40mm f/1.4 DG HSM Art lens offers a slightly longer but still reasonable focal length paired with that wide aperture, making it a potentially useful candidate for astro work. This great video review takes a look at the lens from an astrophotographer’s perspective and the sort of image quality and performance you can expect from it.

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