|DG||The lens is designed for full-frame SLR cameras but can be also used on APS-C SLR cameras.|
|HSM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|| A||Art series lens designed with a focus on sophisticated optical performance and abundant expressive power. Delivers high-level artistic expression.|
|Position in the lineup|
|Sigma 50mm F/1.4 DG HSM | A||Jan 2014||⊗|
|Sigma 50mm F/1.4 EX DG HSM||Mar 2008||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||46.8° (35mm full frame)
37.6° (Canon APS-H)
30.4° (Canon APS-C)
31.6° (Nikon APS-C)
27.9° (Sigma APS-C)
31.6° (Sony APS-C)
|Lens construction:||13 elements in 8 groups, including 1 ASPH, 3 SLD|
|Closest focusing distance:||40 cm|
|Number of diaphragm blades:||9|
|Type of autofocus motor:||Ultrasonic (Canon EF)
Ultrasonic (Minolta/Sony A)
Ultrasonic (Nikon F)
Ultrasonic (Sigma SA)
|Full-Time Manual Focus:||Yes|
|Weight:||SA: 815 g|
|Maximum diameter x Length:||SA: Ø85.4 x 99.9 mm|
|Materials:||High-quality plastic barrel, metallic mount|
|Filter size:||77 mm|
Design and Features
For information on history of Sigma and development of Sigma Global Vision line please refer to the article dedicated to Sigma 35mm F/1.4 DG HSM | A.
The lens barrel is heavy, made of high-quality plastic (TSC). The lens mount is metallic. Please refer to the article dedicated to Sigma 35mm F/1.4 DG HSM | A for more information about TSC. In terms of build quality and design Sigma Global Vision line is a new direction for the company: cosmetically the lens differs from the earlier models and looks attractive. The focusing ring is wide, rubberized and finely-ribbed in order to provide a good grip and to prevent slippage of the fingers.
The lens features AF/MF focus mode switch.
|AF||Autofocus mode with Full-Time Manual Focus.|
|MF||Manual focus mode.|
The lens uses front filters with standard size of 77 mm which are easy to find. However, filters of such size are more expensive and mainly used with professional lenses.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
The lens is equipped with ultrasonic motor, the autofocus is virtually silent and fast. Some people also find the autofocus of this lens to be inconsistent/inaccurate, but this is usually the result of one’s inability or inexperience in shooting at large apertures where this lens provides very narrow depth of field. Focus shift, which is typical for large aperture prime lenses, does not facilitate the task of autofocus system either. In such situation the autofocus errors are unavoidable even with professional DSLR cameras, especially in low-light conditions.
The lens is compatible with Sigma USB dock, an optional accessory which allows to connect the lens to a computer and customize its operation via Sigma Optimization Pro software. The customization for this lens includes updates of firmware via the Internet, autofocus microadjustments for 4 shooting distances and setting the amount of rotation of the focusing ring which triggers FTM focusing.
Sigma also offers paid Mount Conversion Service (MCS) for this lens. With MCS, the mount of the lens can be converted to Canon EF, Minolta/Sony A, Nikon F or Sigma SA. Teleconverters, USB docks and other accessories for this lens are not eligible for MCS.
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
Low dispersion elements (AD, ED, LD, HLD, SD, UD etc) and fluorite elements minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.
The lens incorporates a floating system that provides correction of aberrations and ensures constantly high image quality at the entire range of focusing distances from infinity down to the closest focusing distance. Learn more
The sharpness is excellent at the center of the frame already wide open! The edges are good wide open, very good at F/2 and excellent from F/2.8. The background blur is smooth and pleasant at large apertures.
|Camera||Nikon D3X||Canon EOS 5D mark II||Canon EOS 1Ds mark III|
|Sensor size||35.9×24 mm||36×24 mm||36×24 mm|
|Distortion||+1.3 %||+1.31 %||-0.12 %|
|Vignetting at F/1.4||-1.46 EV||-1.66 EV||-1.63 EV|
|Prime lenses for Canon EOS DSLR cameras|
Alternatives (AF, 44..56 mm)
|Canon EF 50mm F/1.2L USM||2007||⊗|
|Canon EF 50mm F/1.4 USM||1993||⊗|
|Canon EF 50mm F/1.8||1987||⊗|
|Canon EF 50mm F/1.8 II||1990||⊗|
|Canon EF 50mm F/1.8 STM||2015||⊗|
|Canon EF 50mm F/1L USM||1987||⊗|
|Carl Zeiss Planar T* 50mm F/1.4 ZA SSM (SAL50F14Z)||2013||⊗|
|Sigma 50mm F/1.4 EX DG HSM||2008||⊗|
|Sony 50mm F/1.4 (SAL50F14)||2006||⊗|
|Sony DT 50mm F/1.8 SAM (SAL50F18)||2009||⊗|
|Tamron SP AF 45mm F/1.8 Di VC USD F013||2015||⊗|