The Sigma 30mm F1.4 DC DN Contemporary for Canon RF is a small, bright standard prime for APS-C cameras. It gives a 48mm equivalent view, close to what the eye sees, and its F1.4 aperture lets you blur backgrounds and shoot indoors without flash. At 285g it suits an EOS R7, R10 or R50 well.
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Image quality
There are 9 elements in 7 groups, including two aspherical elements and a front element of high-refractive, high-dispersion glass. Super Multi-Layer Coating reduces flare and ghosting, so images keep their contrast in backlit scenes.
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Bokeh and low light
F1.4 gives a shallow depth of field for portraits and still life, and the nine-blade rounded aperture renders out-of-focus areas smoothly. Stopped down, the same lens is sharp enough for landscapes and everyday snaps.
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Autofocus and video
A stepping motor moves a light focus group for fast, smooth and quiet autofocus, which makes the lens easy to use for video. It works with the camera's face and eye detection.
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Size and close focus
It weighs 285g, measures 69.0 x 71.3mm and takes 52mm filters. The barrel uses TSC, a thermally stable composite, the bayonet is brass, and the mount is sealed against dust and splashes. It focuses as close as 30cm, for a maximum magnification of 1:7.
Who it's for
This is for anyone who wants a small, light way into fast-aperture photography, for portraits, family pictures, food and low-light shots. Of these, only the R7 has in-body stabilisation. For a wider everyday view, the Sigma 23mm F1.4 DC DN is the step out, and for head-and-shoulders portraits the Sigma 56mm F1.4 DC DN is the step in.
Also available for Sony E, Fujifilm X and Nikon Z.
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