The 30mm f/1.4 DC DN Contemporary Lens from Sigma is an affordable, fast prime lens. On paper, it looks like it should be a fabulous piece of glass. I put it through its paces to see if it lived up to its marketing blurb. I never read other reviews before testing lenses, which was true of this lens. I didn't want any preconceived ideas. Furthermore, I don't own any Sigma lenses, so I made no presumptions. I didn't even look at the B&H website to see what the lens retails at; retail price is a good indicator of image quality.
Sigma 30mm f/1.4 DC DN review — An all-rounder you'll love
A new large-aperture F1.4 standard lens from the Contemporary lineOffering an opportunity to experience the fun of shooting wide open - with F1.4 brightnessSIGMA 30mm F1.4 DC DN | Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open - with F1.4 brightness.
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Review: Sigma 30mm f/1.4 DC DN Contemporary Lens. The 50mm-ish prime I did not realize I was looking for. – Eric L. Woods
2 low-dispersion glass elements, glass mold aspherical lens element 50.7-degree angle of view 11.81-inch minimum focusing distance
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Sigma 30mm f/1.4 DC DN review — An all-rounder you'll love
A new large-aperture F1.4 standard lens from the Contemporary lineOffering an opportunity to experience the fun of shooting wide open - with F1.4 brightnessSIGMA 30mm F1.4 DC DN | Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open - with F1.4 brightness.
Sigma Contemporary Lens for Micro Four Thirds - 30mm - F/1.4 - Black