SIGMA 28-45mm F1.8 DG DN I Art L-Mount

The world's first* Full Frame zoom with F1.8 aperture
SIGMA has successfully developed the world's first Full Frame zoom with a maximum aperture of F1.8. The SIGMA 28-45mm F1.8 DG DN | Art features an internal zoom mechanism, a minimum focusing distance of 30 cm throughout the zoom range and a filter diameter of φ82 mm. Although packed with advanced features, the lens weighs less than 1kg, making it a portable and versatile option for handheld or gimbal shooting.

Large constant aperture of F1.8
Previously reserved for fixed focal lengths only, the F1.8 maximum aperture allows full-frame camera users to shoot handheld in low light and produce beautiful bokeh, all while benefiting from the flexibility of a zoom. This unique optical performance is the result of SIGMA's accumulated experience in optical design and advanced production technology at the company's only production facility located in Aizu, Japan.

Effective and reliable internal zoom
Thanks to an internal zoom mechanism, the overall length of the lens remains constant when the focal length or focusing distance changes. The lens is therefore easy to use when shooting handheld, very stable when mounted on a tripod or gimbal, and more resistant to dust and water splashes.

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

High-end construction for reduced weight
The rigidity and durability of the lens protects its sophisticated optical design, while weighing less than 1 kg. Additionally, this reliable photographic tool uses a versatile filter diameter of φ82mm, meaning there is no compromise in portability or practicality.

Excellent optical performance comparable to that of a fixed focal length
By carefully correcting all optical aberrations across the entire zoom range, the SIGMA 28-45mm F1.8 DG DN | Art rivals fixed focal lengths in terms of clarity and definition. Thanks to its advanced coatings, the lens produces clear images, even when backlit, while focus breathing* is completely suppressed, bringing expressive power to filmmakers and photographers.

* Change of framing when changing focus

The pinnacle of optical quality in a zoom
Thanks to the efficient arrangement of 5 SLD elements and 3 aspherical elements, aberrations are rigorously corrected. Axial chromatic aberration, particularly noticeable with large aperture lenses, has been completely suppressed, and the lens delivers clear images with minimal coloration, ranging from razor-sharp details to wide, soft bokeh.

Removing focus breathing*
When using conventional lenses, the angle of view may change when focusing near or far, affecting composition accuracy. With the SIGMA 28-45mm F1.8 DG DN | Art, focus breathing* is removed, allowing for natural focus when shooting videos.

* Change of framing when changing focus

Flare and incident lights eliminated
Flare and incident lights, which reduce image quality, have been largely eliminated using advanced modeling technology, ensuring quality and contrasting results in all conditions. Additionally, to minimize flare and incident light, the lens uses SIGMA's Nano Porous and Super Multi-Layer coatings, which provide superior backlight resistance and deliver clear, sharp images in all areas. lighting conditions.

Ultra-fast autofocus and innovative functions
The SIGMA 28-45mm F1.8 DG DN | Art offers a range of professional features as impressive as its exceptional optical performance. With fast, responsive focusing, a sturdy, weather-resistant body, a clickable aperture ring, smooth manual focus and AFL buttons on the lens, all the features combine to create a capable versatile photographic tool to respond to any situation.

Faster focusing thanks to a linear motor
The lens' autofocus mechanism uses a High-response Linear Actuator (HLA) motor to combine accelerated focusing speed with exceptional precision. And since the motor is virtually silent, it allows you to record videos without noise.

Precise and comfortable manual focus
For delicate and precise manual focusing, the lens uses a by-wire focusing ring including optimal torque adjustment, high resolution and an adjustable rotation angle between 90° and 720°*. This allows filmmakers to focus with natural smoothness and photographers to focus manually with exceptional precision.

*Only for L-Mount, and with compatible cameras.

Refinement of the diaphragm ring
The lens is equipped with an aperture ring, an aperture ring switch and an aperture ring lock slider, which allows the aperture to be used according to different shooting situations. .

Equipped with two AFL buttons
Located on the side and top of the lens, two customizable AFL buttons* are easily accessible in horizontal or vertical shooting positions.

* Feature only available on compatible devices. Available functions may vary depending on the device used.

Built to withstand bad weather
In addition to a dust- and splash-resistant structure, the front lens element features a water- and oil-repellent coating, allowing photographers to shoot with peace of mind, even in harsh conditions. harsh outdoor environments.

*The structure is designed to be dust and splash resistant, but not water resistant. Be careful not to put the lens in contact with a large amount of water. Water inside the lens can cause significant damage and even render the lens beyond repair.

Comes with corolla sunshade with lock
A corolla lens hood is included to protect the lens from light. It features a locking mechanism for secure attachment and can be reversed for easier storage.

Features 28-45mm F1.8 DG DN | Art

• Photo Lens Type: Full-Frame
• APS-C Compatible Yes
• Optical formula: 18 elements in 15 groups, 5 SLD lenses and 3 aspherical lenses
• Angle of view (Full frame): 75.4-51.3°
• 11-blade diaphragm (circular diaphragm)
• Minimum aperture F16
• Minimum focusing distance 30cm
• AF-S Focus Yes
• AF-A Focus Yes
• AF-C Focus Yes
• Manual focus Yes
• Eye AF Yes
• Smile/Face Detection Yes
• AFL Yes Button
• Dust and splash resistant Yes
• Compatible with integrated optical corrections Yes
• Maximum reproduction ratio 1:4 at 45mm focal length
• Filter diameter φ82mm
• Dimensions: φ87.8mm × 151.4mm
• Weight 960g
• Edition A024
• Sunshade LH878-06 (Provided)
• Types of need: Video, Report, Portrait
• Eligible for frame change Yes
• Line Art