Sigma 28-45MM F1.8 DG DN Art Lens (Sony E)

Product Description

The SIGMA 28-45mm F1.8 DG DN | Art is the world's first full-frame zoom lens with a constant maximum aperture of F1.8, providing sharpness and clarity comparable to a prime lens. This innovative optic offers fast and precise AF and superior operability, making it an ideal choice for full-frame film-makers and stills photographers. The lens features a constant maximum aperture of F1.8, a practical and stable inner zoom mechanism, and a constant 30cm focusing distance across the entire zoom range. It is lightweight at less than 1kg and uses a versatile filter size of φ82mm. The lens's optical quality is achieved through the use of 5 SLD elements and 3 aspherical elements, which suppress aberrations and allow for clear images with minimal coloration. The lens also suppresses focus breathing, enabling natural focus pulls when shooting video. Additionally, the lens eliminates flare and ghosting using advanced simulation technology and SIGMA's Nano Porous Coating and Super Multi-Layer Coating, ensuring clear, saturated images in all lighting conditions.

Product Highlights

• Lens construction: 18 elements in 15 groups (5 FLD, 3 aspherical)

• Inner zoom

• Inner focus system

• Compatible with high-speed autofocus

• Dual HLA (High-response Linear Actuator)

• Compatible with Lens Aberration Correction (for supporting cameras; on cameras where lens aberration correction is controlled with ‘ON’ or ‘OFF’ in the camera menu, please set all aberration correction functions to ‘ON’ (AUTO))

• Support for DMF, AF + MF

• Compatible with AF assist (Sony E-mount only)

• Nano Porous Coating

•  Super Multi-Layer Coating

• Water and Oil Repellent Coating (front element)

•  AFL buttons (2 buttons) (Only on compatible cameras. Available functions may vary depending on the camera used.)

• Focus Mode switch

• Aperture ring

• Aperture ring click switch

• Aperture ring lock switch

•  Zoom lock-switch

• Dust and Splash Resistant Structure

•  Petal Type Hood with lock (LH878-06)

•  Designed to minimize flare and ghosting

• Every single lens undergoes SIGMA’s proprietary MTF measuring system

• 11-blade rounded diaphragm

• High-precision, durable brass bayonet mount

•  “Made in Aizu, Japan” craftsmanship

Product Features

The world's first full-frame zoom lens, offering sharpness and clarity comparable to a prime lens.

SIGMA introduces the SIGMA 28-45mm F1.8 DG DN | Art, a fast, portable, and versatile zoom lens with unprecedented brightness, sharpness, and clarity. Equipped with fast AF and superior operability, this innovative optic revolutionizes zoom lenses, inspiring full-frame film-makers and stills photographers.

F1.8 aperture

Once exclusive to prime lenses, enables full-frame camera users to capture beautiful bokeh in low light.

Inner zoom mechanism 

Ensures constant length when focal length or focus distance changes, making it easy to use, stable, and resistant to dust and water contamination.

Consistent close focus 

Minimum focusing distance of 30cm and a maximum magnification ratio of 1:4 at the telephoto end, ensuring excellent close-up shooting capabilities.

Lightweight with Premium zoom 

Boasts a lightweight design, weighing less than 1kg, and a versatile φ82mm filter size, ensuring portability and convenience.

Highest Level of Optical Quality

Exceptional optical quality, with 5 SLD elements and 3 aspherical elements effectively correcting aberrations and suppressing axial chromatic aberration, resulting in clear images with minimal coloration.

Smooth Focus Breathing

Suppresses focus breathing, allowing natural focus pulls in video shooting, preventing angle-of-view changes caused by regular lenses.

Flare and Ghosting No More

Advanced simulation technology eliminates flare and ghosting, enhancing image quality. SIGMA's Nano Porous Coating and Super Multi-Layer Coating provide superior resistance to backlighting, ensuring clear, saturated images in all lighting conditions.

Fast Focus with Linear motor 

The lens's AF mechanism utilizes an HLA for faster focus speed and precision, enabling video recording without noise due to its near-silent motor.

Manual Focus with Precision and Ease

Features a bi-wire driven focus ring for precise and accurate manual focusing, offering high resolution and adjustable rotation angles for both film-makers and photographers.

An Aperture Ring with Class and Pizazz

Aperture ring, click and lock switch, allowing for versatile aperture operation for various shooting situations.

Two Customizable AFL Buttons

Conveniently located on the side and top of the barrel, allowing easy access in horizontal or vertical shooting positions.

The Tough Cookie of Lenses

Designed to withstand harsh outdoor environments, featuring a dust- and splash-resistant body and a water and oil-repellent coating on its front surface. However, not waterproof, so avoid splashing large amounts of water.

Product Specifications 

Product Lines: Art

Construction: 18 elements in 15 groups, (5 FLD, 3 aspherical elements)

Lens Type: Standard

Sensor Size: Full Frame

Angle of view: 75.4-51.3°

Number of diaphragm blades: 11 (rounded diaphragm)

Minimum aperture: F16

Minimum focusing distance: 30cm

Maximum magnification ratio: 1:4 at f=45mm

Dimensions (diameter x length): φ87.8 mm × 151.4 mm / 3.45 in × 5.96

Weight: 960 g / 2.2 lb

Filter diameter: 82 mm