Open Box Sigma 28-45mm f/1.8 DG DN Art Lens - L-Mount

Open Box: Open Box Sigma 28-45mm f/1.8 DG DN Art Lens - L-Mount Condition: Ex‑store display unit with light handling, tested working.

2 Years Sigma Warranty

Images shown are not of the actual product, and are for reference purposes only. Actual unit may show some signs of use, minor marks or scratches.

In addition to its unprecedented brightness, the Open Box Sigma 28-45mm f/1.8 DG DN Art Lens - L-Mount 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.

Key Features of the Open Box Sigma 28-45mm f/1.8 DG DN Art Lens - L-Mount

• Compatible with high-speed autofocus
• Supports DMF and AF+MF
• Compatible with AF assist (for Sony E-mount only)
• Petal-type hood with lock LH878-06
• Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
• Designed to minimize flare and ghosting
• Mount Conversion Service available

The world's first* full-frame, f/1.8 maximum aperture zoom lens

SIGMA has successfully developed the world's first full-frame zoom lens with a maximum aperture of f/1.8. The SIGMA 28-45mm f/1.8 DG DN | Art incorporates an inner zoom mechanism, a minimum focusing distance of 30cm across the entire zoom range, and a filter size of φ82mm. Despite its advanced feature set, the lens weighs less than 1kg, making it a portable and versatile option for either hand-held shooting or a gimbal setup.

Constant maximum aperture of f/1.8

Once a privilege reserved only for prime lenses, the maximum f/1.8 aperture allows full-frame camera users to expose hand-held in low light and produce beautiful bokeh while enjoying the flexibility of a zoom.

A practical and stable inner zoom

Employing an inner zoom mechanism, the overall length of the lens remains constant when the focal length or focus distance changes. This means the lens is easy to use when shooting hand-held, highly stable when mounted on a tripod or gimbal, and more resistant to dust and water contamination.

Consistent close focus

The minimum focusing distance is a constant 30cm across the entire zoom range, with a maximum magnification ratio of 1:4 at the telephoto end, providing excellent close-up shooting capabilities. As well as offering precise focus in confined spaces, the lens can therefore be used close to a subject without affecting sharpness when using the zoom.

Premium build at a lighter weight

By rights, such a fast zoom should be big and heavy, but while the lens’s rigidity and durability protect its sophisticated optical design, this is achieved at a weight of less than 1kg. What’s more, this reliable photographic tool uses a versatile filter size of φ82mm, meaning no compromise in portability or convenience.

Excellent optical performance comparable to that of a prime lens

With each optical aberration meticulously corrected throughout the zoom range, the SIGMA 28-45mm f/1.8 DG DN | Art rivals prime lenses for clarity and definition. Thanks to its advanced coatings, the lens produces clear images, even in backlit environments, while focus breathing is thoroughly suppressed, bringing expressive power to filmmakers and photographers.

The pinnacle of optical quality in a zoom

Through the effective arrangement of 5 SLD elements and 3 aspherical elements, aberrations are rigorously corrected. Axial chromatic aberration, which is particularly noticeable with large-aperture lenses, has been thoroughly suppressed, and the lens delivers clear images with minimal colouration, from sharply focused details to large, smooth bokeh.

Suppression of focus breathing

When using regular lenses, the angle of view can change as the focus moves from near to far, affecting precise composition. With the SIGMA 28-45mm f/1.8