Sigma Wide Angle Zoom | 28-45mm f/1.8 DG DN Art Lens (L-Mount)

AT A GLANCE

The SIGMA 28-45mm F1.8 DG DN | Art delivers sharpness and clarity comparable to that of a prime lens throughout its entire zoom range. Also equipped with fast and precise AF and superior operability, this innovative optic turns a new page in the history of zoom lenses and their creative possibilities. It is a lens that will inspire full-frame film-makers, while bringing unparalleled versatility to stills photographers

Design and Performance

The lens features a total of 18 elements in 15 groups, with three aspherical and five 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 primes. 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 11.9″ minimum focusing distance across the entire zoom range. It achieves a maximum magnification ratio of 1:4 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
• Super multilayer and nano porous coatings
• Water- and oil-repellent coating on front element
• Dust- and splash-resistant design
• Durable brass bayonet mount

Focal Length 28-45 mm
Minimum Aperture   F16
Lens Construction   18 elements in 15 groups
Angle of View (35mm) 75.4° – 51.3°
Number of Diaphragm Blades   11 (Rounded diaphragm)
Minimum Focusing Distance   30 cm / 11.9 in
Maximum Magnification   1:4
Filter Size   82 mm
Dimensions  87.8 mm × 151.4 mm / 3.5 in × 6.0 in
Weight   960 g / 33.9 oz
Mounts (AF)  L-mount

Sigma 28-45mm f/1.8 DG DN Art Lens (L-Mount)
• Lens Hood
• Sigma LCF-82 III 82mm Lens Cap
• Sigma LCR II Rear Lens Cap for L-Mount