see also:

• wide angle lenses
• fast 35-40mm focal length lenses
• Background blurring test – Sigma 35mm f/1.4 on Sony a7II full frame vs Panasonic 20mm f/1.7 pancake on Micro Four Thirds

• introduced in 2012, this is a superb lens from Sigma which is optically superior to the Canon, Nikon, Sony or Carl Zeiss 35mm lenses although it is not weathersealed and bokeh is not as nice as it could be

• 35mm full frame lens in Canon, Nikon, Pentax, Sigma or Sony mounts
• 13 elements in 11 groups with 4 SLD, 1 FLD and 2 aspherical elements
• 9 rounded blades
• closest focus 0.3m giving 0.19x magnification
• ring type HSM focus motor with full time manual control
• internal focus
• 67mm filter thread
• 665g (23.5oz)
• 77mm x 94mm long
• RRP $US900

• dpreview.com's review:
  • superb optics that beat anything else in its class, reasonably sharp in the centre wide open, very sharp at f/2.8 but requires f/5.6 for highest levels of sharpness across the frame
  • impressive flare resistance
  • fast, silent, and accurate autofocus
  • excellent build quality
  • slightly fussy rendition of out-of-focus backgrounds under some conditions - ie. bokeh may not be as nice as one would like
  • some vignetting up to 2EV in the corners at f/1.4, 1 EV at f/2.0 and 0.5EV at f/2.8
  • minimal barrel distortion of 0.8% on the long edge and 0.24% on the short edge
  • transmission T/1.5
• *beats the Leica-R Summicron 35mm f/2.0