Sigma 20mm f/1.4 DG HSM Art lens officially announced

• 9 years ago
• Categories: Nikon Lenses
• Tags: Sigma, Sigma 20mm f/1.4 DG HSM Art lens

Sigma officially announced their 20mm f/1.4 DG HSM Art lens for Nikon F-mount – the fastest 20mm lens available today (or the world’s first 20mm f/1.4 lens). The US price is $899 and pre-orders are now open at B&H and Adorama. Shipping will start at the beginning of November, 2015. Additional technical information:

Specifications:

Lens construction	15 elements in 11 groups
Minimum aperture	F16
Angle of view (35mm equivalent)	94.5°
Minimum focusing distance	27.6 cm / 10.9 in.
Dimensions (diameter x length)	φ90.7mm x 129.8mm / 3.6 in. x 5.1 in.
Number of diaphragm blades	9 (rounded diaphragm)
Maximum magnification ratio	1：7.1
Weight	950 g / 33.5 oz.

Features:

• A Hyper Sonic Motor (HSM) that ensures a silent, high-speed AF function. Smoother AF is achieved when the this AF algorithm is optimized
• A nine-blade, rounded diaphragm creates an attractive blur to the out-of-focus areas of the image
• A brass bayonet mount of highly precise and durable construction to enhance mount’s strength and long-term wear resistance

MTF chart:

Lens design:

Chromatic aberration:

Vignetting:

Distortion:

The full press release can be found here.