The Sigma 24mm f3.5 DG DN Contemporary Lens is to lenses what Nikon is to cameras these days.

“Why would I buy this?” is the question I kept asking myself. The Sigma 24mm f3.5 DG DN Contemporary is quite a headscratcher. For the Sony E mount, there are better weather-sealed and cheaper 24mm lenses. For the Leica L mount, there isn’t much competition at all. However, that’s also one of the most ruggedly built systems. 
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