Sigma 28-105mm f/2.8 DG DN Art L-mount

SIGMA 28-105mm F2.8 DG DN A | Art

Exclusively for mirrorless cameras ｜Compatible with full-frame cameras

Far more than just standard

Powerful, versatile and mobile F2.8 lens with a
focal length range of 28 to 105 mm - a standard zoom that goes far beyond the
standard.

The SIGMA 28-105mm F2.8 DG DN | Art is not just another standard zoom lens. With a
powerful wide-angle to medium telephoto focal length and a speed of F2.8
, it combines outstanding optical performance with excellent
build quality. It also offers a range of professional features that make it one
of the most versatile lenses on the market for mirrorless system cameras with a full-frame sensor
.
Thanks to SIGMA's latest optical technology and the use of large
diameter lenses, including FLD, SLD and five aspherical elements, it is capable of mastering a wide
range of photographic situations - from detailed landscape shots to
portraits with harmonious bokeh. The Lens offers exceptional versatility without
compromising on optical quality. A high-speed autofocus with HLA-
technology, the robust, dust and splash-proof construction and various
features, such as the de-clickable aperture ring, are among the high-quality
features. With a compact and lightweight body and a weight of
less than 1 kg, the SIGMA 28-105mm thus becomes an exceptional all-round lens -
for both stills and video.

[Key features]

Versatile 28-105mm zoom with constant F2.8 aperture
Many conventional zoom lenses with a focal length of up to 105mm do not offer a continuous
aperture of F2.8 and usually drop to F4 at the telephoto end. The SIGMA 28-105mm F2.8 DG DN
| Art offers the advantages of a continuous F2.8 aperture, such as speed and variability of
depth of field over the entire focal length range. Its optical performance is also extremely high over the
entire zoom range. The consistently thorough reduction of optical
aberrations within each lens group ensures outstanding results. Its
outstanding closest focusing distance also enables close-ups with a reproduction scale of
approx. 1:3 in the telephoto range.

F2.8 aperture - perfect for portraits and in low light

With its high speed over the entire focal length range, the SIGMA 28-
105mm F2.8 DG DN | Art is a real working lens that can be used for almost any type of photography
. Landscape photographers benefit from wide-angle shots with
enormous spatiality, while the large zoom range offers high
flexibility in reportage photography. At the same time, the continuous aperture of F2.8 ensures faster shutter speeds
than an F4 with comparable Lens and thus provides sufficient scope for working in
poorer lighting conditions or at dusk. The zoom range of
85mm to 105mm benefits portrait photographers. In combination with the large
aperture of F2.8, a shallow depth of field is achieved, which isolates the main subject
impressively against a background with large and soft bokeh.

Outstanding close-ups

With a focusing distance of just 40 cm over the entire focal length range,
the SIGMA 28-105mm F2.8 DG DN | Art brings you close to the subject for images with an abundance of
detail. The magnification of 1:3.1 at 105mm focal length ensures impressive
results for close-ups.

Superior optical performance over the entire focal length and focus range

The SIGMA 28-105mm F2.8 DG DN | Art works uncompromisingly and suppresses
aberrations very effectively within each individual lens group over the entire
focal length and focus range. This ensures that the Lens delivers consistently high performance despite
its wide zoom range. This is
thanks to the modern, high-quality optical design of the Lens. This comprises two
FLD, one SLD and five aspherical elements, including an
element with a diameter of 66.4mm in the first group. Such large elements are very difficult
to manufacture. SIGMA's decades of experience in the field of optical design
and the advanced manufacturing technology of the SIGMA factory in Aizu, Japan, make
this possible.

Low susceptibility to flares and ghosting

Flares and ghosting, which impair image quality, have been optimized for all lighting conditions using the latest
simulation technology. In addition, SIGMA uses Nano Porous and Super Multi-Layer lens coatings for
this Lens,
to prevent flares and ghosting as far as possible. This enables brilliant and high-contrast images to be taken even under unfavourable
lighting conditions.

Minimized focus breathing

For filmmakers, a constant image section is of crucial importance. This is why
great importance was attached to reducing focus-breathing
to a minimum during the development of the Lens. This ensures that changes in the image angle
due to focus shifts are minimized over the entire zoom range.
This ensures natural-looking focus shifts when shooting video and
easier image alignment when focus stacking.

Outstanding handiness thanks to a weight of less than 1 kg

Standard zooms should be small and light enough to shoot hand-held
over a long period of time. This is why the SIGMA 28-105mm F2.8 DG DN | Art was developed with mobility in mind
. It combines five aspherical elements that shorten the overall length of the lens,
with a magnesium alloy construction that limits the weight of the lens to less
than 1 kg. This makes the lens similarly handy to shorter standard zoom lenses,
while offering a wider zoom range.

Outstanding optical performance in a slim body

By using five aspherical elements in the optical construction,
SIGMA has succeeded in significantly shortening the overall length of the lens without compromising
sharpness and image quality. This advanced design
was only possible through continuous technological innovation and state-of-the-art
manufacturing processes at SIGMA's sole production facility in Aizu, Japan.

Smarter design means lighter weight

Zoom Lens with a constant F2.8 aperture can be heavy. By
optimizing the design and materials of the SIGMA 28-105mm F2.8 DG DN | Art,
SIGMA has achieved a remarkably low weight of less than 1 kg. By
using a magnesium alloy instead of aluminum for the lens barrel around
the lens mount, the weight of these parts alone has been reduced by two thirds
while maintaining rigidity.

Professional features, fast autofocus and excellent
processing

In addition to the fast autofocus provided by the HLA (High-Response Linear Actuator)
linear motor, the SIGMA 28-105mm F2.8 DG DN | Art has a range of features that help to
achieve the best possible results in any shooting situation. These include a dust-
and splash-proof construction and the water and oil-repellent coating of the
front lens. A zoom lock switch, the de-clickable aperture ring, two AFL buttons and the focus ring, which can be operated precisely for
MF shots, are further professional features.

An HLA linear motor for fast and precise AF

The Lens is equipped with an HLA linear motor (High-response Linear Actuator),
which offers a high drive speed, as well as responsive, precise and
smooth AF. Thanks to its almost silent operation, it is also suitable for
video recordings.

Aperture ring with "de-click function"

Many demanding users appreciate the ability to set the aperture directly on the aperture ring
of the Lens. The SIGMA 28-105mm F2.8 DG DN | Art therefore offers an
aperture ring. Thanks to its "de-click function", this feature is also interesting for filmmakers
, as the aperture can be set steplessly and silently in this position
. Those who prefer to set the aperture on the camera body can use the lock function of the
aperture ring and are protected against accidental adjustment.

Equipped with two AFL buttons

The Lens has two AFL buttons, which have been positioned for optimum accessibility when shooting in
portrait and landscape format. These buttons can be assigned individual functions* with compatible cameras
.
*Only in combination with compatible cameras. The available functions may vary depending on the camera used
.

Zoom lock switch

The Lens is equipped with a zoom lock switch, which locks the zoom mechanism in the
wide-angle range and prevents the tube from extending unintentionally due to its own weight
. The lock can be released not only via the switch, but also by
turning the zoom ring, which enables quick and flexible handling for
spontaneous shots.

Protected from external influences

In addition to the dust and splash-proof body*, the front lens of the
Lens has a water and oil-repellent coating. This means that you can take pictures without worrying even under
difficult shooting conditions.
* The lens is dust and splash-proof, but not waterproof.
Includes lockable tulip-shaped lens hood
The specially adapted lens hood LH878-07 is included with the SIGMA
28-105mm F2.8 DG DN | Art. This is securely locked in place with a quick twist and can
be attached to the lens upside down for space-saving storage.

[Technical data]
- Lens construction: 18 elements in 13 groups (2 FLD, 1 SLD, 5 aspherical elements)
- Angle of view: 75.4° - 23.3°
- Number of aperture blades: 12 (round aperture)
- Smallest aperture: F22
- Closest focusing distance: 40 cm
- Maximum magnification: 1:3.1 (at 105mm focal length)
- Filter size: Ø 82 mm
- Dimensions (maximum diameter x length): 87.8 mm x 157.9 mm
- Weight: 995g
Note: The data mentioned refer to the L-mount version.
[Other features]
- Internal focusing
- Compatible with high-speed autofocus
- HLA (High-Response Line Actuator)
- Compatible with Lens aberration correction
Only in combination with compatible camera. The available correction or autocorrection functions may vary depending on the camera model

- Supports DMF and AF+MF
- Compatible with AF-Assist (Sony E-mount only)
- Nano Porous and Super Multi-Layer CoatingCoating
- Water and oil-repellent coating (front lens)
- Aperture ring with aperture ring click switch and aperture ring lock switch
- Two AFL buttons
Customizable in combination with compatible cameras. The available functions may vary depending on the camera used
.
- Focus mode switch
- Zoom lock switch
- Switchable between linear and non-linear transmission of the focus ring (only
L-Mount)
Only in combination with compatible cameras of the L-Mount system.
- Dust and splash water protection
The Lens is dust and splash water protected, but not waterproof.
- Low susceptibility to flares and ghosting
- High-precision, robust brass bayonet
- Each individual lens undergoes SIGMA's own MTF measuring system
- Interchangeable mount service available
- Lens hood LH878-07 included
- Compatible with SIGMA USB dock UD-11
Optionally available / only for L-Mount
- Handcrafted quality "Made in Aizu, Japan"