The lens comes with a raft of pro-level features that includes an aperture ring with de-click and lock switches, an AFL button, a lockable lens hood, a rear filter holder, a Lens Heater Retainer and a manual focus lock feature. The optical design includes two SLD and three aspherical elements, one of which is the largest double-sided aspherical glass element in Sigma’s history. These advanced optics ensure very minimal chromatic aberration, sagittal coma flare and image distortion, giving highly-detailed images with exceptional sharpness and accuracy from the centre to the periphery of the frame.

 

Angle of View Wide Angle

Camera type Mirrorless

Lens Mount L-Mount, Sony E-mount

Sensor Size Full Frame

Construction 17 elements in 15 groups

Angle of view 94.5 °

Number of diaphragm blades 11 (rounded diaphragm)

Minimum aperture F16

Minimum focusing distance 23cm / 9.1in.

Maximum magnification ratio 1:6.1

Filter size φ82mm

Dimensions (diameter x length)

L-Mount：φ87.8mm × 111.2mm / φ3.5in. × 4.4in.

 

Sony E-mount：φ87.8mm × 113.2mm / φ3.5in. × 4.5in.

 

Weight

L-Mount：635g / 22.4oz.

 

Sony E-mount：630g / 22.2oz.