AT A GLANCE

• APS-C | f/1.8 to f/16
• 25.5 to 60mm (Full-Frame Equivalent)
• Superfast Wide-to-Normal Zoom
• HLA Autofocus
• 11" Minimum Focus Distance
• Aperture Ring with Click & Lock Switches
• SLD and Aspherical Elements
• Water- and Oil-Repellent Coating
• Dust & Splash Resistant Construction

The lens features a total of 17 elements in 11 groups, with four aspherical and four Special Low Dispersion elements to minimize flare and ghosting and suppress various aberrations. This results in an optical performance that meets or exceeds that of other Sigma Art lenses, including the 18-35mm f/1.8 DC HSM Art lens. Along with its 11-blade, rounded diaphragm, the design promotes sharpness and a large, smooth bokeh when used wide open.

In addition to the f/1.8 maximum aperture, the lens also maintains an 11" minimum focusing distance across the entire zoom range. It achieves a maximum magnification ratio of 1:4.8 at its longest focal length, increasing depth of field and versatility in tight spaces.

Video Production

Designed with video creation in mind, the lens' bright f/1.8 aperture and wide-to-normal zoom range make it a versatile tool ideal for single-shooter, run-and-gun setups. An internal zoom design maintains the overall length during use, making it easy to balance on gimbals. The design also suppresses focus breathing for smooth movement across the focal range. Sigma's high-speed, high-response linear actuator autofocus remains both quiet and accurate, while manual focusing is improved with click-and-lock mechanisms.

• Two AFL buttons
• Focus mode switch
• Water- and oil-repellent coating on front element
• Dust- and splash-resistant design
• Durable brass bayonet mount

Color  Black

Focal Length  17 to 40mm (35mm Equivalent: 25.5 to 60mm)

Aperture  Maximum: f/1.8
                Minimum: f/16

Lens Mount  Sony E

Lens Format Coverage  APS-C

Angle of View  76.5° to 37.1°

Minimum Focus Distance  11" / 28 cm

Magnification  1:4.8 Macro Reproduction Ratio
                       0.21x Magnification

Optical Design  17 Elements in 11 Groups

Aperture/Iris Blades  11, Rounded

Focus Type  Autofocus

Image Stabilization  No

Filter Size  67 mm (Front)

Dimensions  ø: 2.9 x L: 4.6" / ø: 72.9 x L: 115.9 mm

Weight  19.8 oz / 560 g