The Sigma 35 mm f/1.4 DG HSM Art is a wide-angle prime lens made by the Sigma Corporation.^[1] The lens was announced at the 2012 photokina trade fair.^[2]

Sigma 35 mm f/1.4 DG HSM A

Maker	Sigma Corporation
Technical data
Focal length	35 mm
Crop factor	1.0
Aperture (max/min)	f/1.4 - f/16
Close focus distance	300 mm / 11.8 in.
Max. magnification	1:5.2
Diaphragm blades	9
Construction	13 elements in 11 groups
Features
Short back focus	No
Ultrasonic motor	Yes
Lens-based stabilization	No
Macro capable	No
Application	Wide prime
Physical
Max. length	94 mm / 3.7 in.
Diameter	77 mm / 3 in.
Weight	665 g / 23.5 oz.
Filter diameter	67 mm
Accessories
Lens hood	Petal
Angle of view
Diagonal	63.4°
History
Introduction	2013
Retail info
MSRP	$899.00 USD USD

The lens is produced in Canon EF mount, Nikon F-mount, Pentax K mount, Sigma's own SA mount, and the Sony/Minolta AF Mount varieties, all have the same optical formula. Since the lens covers full-frame sensors and includes an ultrasonic autofocus motor, it is fully compatible with most DSLRs on which it can be mounted physically. Reviews have noted excellent sharpness ^[3] and an overall performance on par with manufacturers such as Nikon and Canon, despite its price being significantly less than comparable offerings by those companies.^[2]

The Art series of Sigma lenses can be connected to Sigma's USB dock, allowing the lens firmware to be updated and focus micro-adjustments to be configured at four different focus distances.^[4]