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The Sigma 30mm f/1.4 DC DN Contemporary is a fast prime for Sony E-mount APS-C mirrorless cameras, giving a roughly 45mm full-frame equivalent field of view. Its f/1.4 aperture gathers a lot of light and produces smooth background blur, and the stepping motor drives quick, quiet autofocus for stills and video. It is small and light enough to leave on the camera all day, which is why it is a common first fast prime. Against Sony's own 35mm f/1.8 OSS it trades optical stabilization for a wider aperture; against the Sigma 56mm f/1.4 it is the more general-purpose focal length. Owners praise sharpness and value and note softness wide open and some focus noise in video.
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Reviewers and owners rate the Sigma 30mm f/1.4 as one of the best-value fast primes for Sony APS-C. They praise sharpness, size and background blur, and criticize edge softness wide open, vignetting and the lack of stabilization.
The Sigma 30mm f/1.4 Contemporary DC DN is a compact prime lens for Sony E-mount mirrorless cameras. It has a 30mm focal length and a large f/1.4 aperture. The wide aperture gives a shallow depth of field for background blur (bokeh).
A built-in stepping motor drives the autofocus, which is quick and quiet. This is useful for video recording. The lens works with Sony E-mount Fast Hybrid AF.
It belongs to Sigma's Contemporary line, which combines a lightweight, streamlined build with a focus on optical quality. It is designed exclusively for mirrorless interchangeable lens cameras. The lens suits travel, portrait, event, family and everyday photography.
