Sigma 50mm F1.4 DG HSM | A Lens

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92% Gold Award
It's the best autofocus 50mm prime we've reviewed to date, with optics so good that we can't really find anything to criticize.”

Read more of the review

Key Features

  • 50mm focal length
  • 75mm equivalent focal length on APS-C cameras, 80mm equivalent focal length on Canon APS-C cameras
  • F1.4 maximum aperture; F16 minimum
  • Ring-type ultrasonic-type AF motor with full-time manual focusing
  • 77mm filters
  • 0.4m/15.7" minimum focus
  • Available in Canon EF, Sony Alpha, Sigma SA, Nikon F (FX) mounts

Product Description

The 50mm F1.4 DG HSM is a premium 'normal' prime designed for full frame SLRs, and part of Sigma's 'Art' line. Not to be confused with the older 50mm D1.4 EX DG HSM, it's a completely new lens with a complex optical formula of 13 elements in 8 groups, and a minimum focus distance of 40cm. As part of the 'Global Vision' line it's also compatible with Sigma's USB dock and Mount Conversion Service. On APS-C / FX SLRs it acts like a 75mm short telephoto lens.

Specs

Principal specifications
Lens type Prime lens
Max Format size 35mm FF
Focal length 50 mm
Image stabilisation No
Lens mount Canon EF, Nikon F (FX), Sigma SA Bayonet, Sony/Minolta Alpha
Aperture
Maximum aperture F1.4
Minimum aperture F16.0
Number of diaphragm blades 9
Aperture notes Rounded diaphragm
Optics
Elements 13
Groups 8
Special elements / coatings SLD glass elements, aspheric elements
Focus
Minimum focus 0.40 m (15.75)
Maximum magnification 0.18×
Autofocus Yes
Motor type Ring-type ultrasonic
Full time manual Yes
Focus method Internal
Focus notes Floating focus system
Distance scale Yes
DoF scale Yes
Physical
Weight 815 g (1.80 lb)
Diameter 85 mm (3.35)
Length 100 mm (3.94)
Filter thread 77 mm

Reviews

DPReview Conclusion

Scoring is relative only to the other lenses in the same category at the time of review.

Score Breakdown
Poor Excellent
Optical Quality
Build Quality
Autofocus
Ergonomics and Handling
Value
Gold Award
Gold Award
92 %
Overall Score

The Sigma 50mm F1.4 DG HSM | Art is distinctly large, heavy and expensive for its type. However this is more than made up for by its fast silent autofocus, solid build quality, and absolutely outstanding optics. Overall it stakes a very serious claim to be the best autofocus 50mm prime on the market right now.

Good For

Full frame users looking for the sharpest possible images, even when shooting at large apertures

Not So Good For

Anyone who shoots a lot in damp or dusty conditions

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