 |
| Image: Sigma |
Sigma has announced the full-frame 28-105mm F2.8 DG DN Art lens for L-mount and Sony E-Mount cameras. The company says the lens is meant to cover “several popular focal lengths,” such as 28mm, 50mm, and 85mm while providing a constant aperture.
The lens is constructed from 18 elements in 13 groups, with two fluorite-like ‘F’ low dispersion (FLD) elements, one super low dispersion (SLD) element and five aspherical lenses. The front element has a water and oil-repellant coating, and Sigma claims the lens is dust and splash-resistant.
The company is pitching this as a lens for both photographers and videographers. To woo the latter, it says that the ‘High-response Linear Actuator’ autofocus motor will provide ‘noise-free video capability’ and emphasizes its ‘minimal’ focus breathing.
 |
|
This lens includes a variety of switches and buttons. Image: Sigma |
The L-mount version of this lens weighs 995g (35.1oz), which makes it approximately 34% heavier than Sigma’s comparable 24-70 F2.8 for L-mount, which weighs 745g (26.3oz). Whether that’ll be worth it to you will likely depend on how often you find yourself wishing for just a little more reach (or how often you shoot at your lens’ widest setting).
While shooting a sample gallery for the lens, which you can see below, we found the relatively unusual 28-105mm focal length to be highly versatile for everyday shooting, though we wouldn’t be surprised if some shooters were left wanting a bit more on the wide end, given the popularity of the 24mm focal length.
We also appreciated the tactility of the lens. It has an aperture ring, a switch to change that ring between click and clickless mode, and a lockout to keep it in or out of the auto setting. There’s also a zoom lock, autofocus/manual focus switch and a pair of AFL buttons.
Sigma claims the lens is “surprisingly compact,” at a length of 157.9mm (6.2″), but you can expect it to extend by around 38mm (1.5″) when you zoom with it. It’s also worth noting that the lens has a 40cm (15.8″) minimum focusing distance, which is relatively distant compared to many brands’ 24-70 F2.8 lenses. The lens has an 82mm filter size.
The 28-105mm F2.8 DG DN Art will sell for $1,499 when it launches in ‘late September.’
Sigma 28-105mm F2.8 DG DN sample gallery:
Please do not reproduce any of these images on a website or any newsletter/magazine without prior permission (see our copyright page). We make the originals available for private users to download to their own machines for personal examination or printing (in conjunction with this review); we do so in good faith, so please don’t abuse it.
Press Release:
SIGMA announces 28-105mm F2.8 DG DN | Art lens, a new fast-aperture zoom with extended reach
Ronkonkoma, NY – September 5, 2024 – SIGMA Corporation of America, the US subsidiary of SIGMA Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan) is pleased to announce the SIGMA 28-105mm F2.8 DG DN | Art zoom lens for full-frame mirrorless camera systems. Spanning many popular focal lengths in a single fast-aperture zoom, this is an exciting addition to the product line.
The SIGMA 28-105mm F2.8 DG DN | Art is a surprisingly compact, full-frame, wide-angle to telephoto zoom lens with a fast constant aperture. Available for Sony E-mount and L-Mount, this lens covers several popular focal lengths from 28mm to 105mm, including the very popular 85mm focal length for portraiture, remaining at F2.8 through the entire range.
Featuring HLA (High-response Linear Actuator) autofocus, and optical performance that lives up to the standard of Art line lenses, the SIGMA 28-105mm F2.8 DG DN | Art joins SIGMA’s selection of fast-aperture zoom lenses in the Art line, offering photographers and videographers a variety of premium standard zoom options depending on their personal style. Like the 24-70mm F2.8 DG DN II | Art and the 28-45mm F2.8 DG DN | Art, the new 28-105mm F2.8 includes a lockable aperture ring with click/declick function, as well as two AFL buttons and a zoom lock switch. Additionally, the dust- and splash-resistant design and water-and oil-repellant coating on the front element makes it suitable for shooting both stills and video in inclement weather.
A minimum focusing distance of 15.8 inches (40cm) at all focal lengths, and maximum magnification ratio of 1:3.1 at the telephoto end add to the versatility of this new zoom lens. This lens also features a rounded twelve-blade diaphragm, which helps to keep the large-aperture unit as small as possible.
Measures have been taken to minimize changes in optical performance due to differences in zoom and focus positions, including the use of a difficult-to-process large-diameter FLD glass in the first group to suppress aberrations in each group. In addition, the use of 5 aspherical lens elements has enabled the lens to achieve both a wide zoom range of 28mm to 105mm and a large-aperture of F2.8, while reducing its overall size.
By thoroughly reducing the weight of each part, the lens is kept under 2 pounds while achieving both a wide zoom range and an F2.8 aperture. The lens barrel near the mount is made of magnesium rather than aluminum, ensuring rigidity while reducing the weight of these parts alone by two-thirds. The lens will retail for $1,499 and will be available in late September 2024.
Learn more at: https://www.sigmaphoto.com/28-105mm-f2-8-dg-dn-a
Exclusively for mirrorless cameras | Compatible with full-frame cameras
A | Art
SIGMA 28-105mm F2.8 DG DN | Art
Beyond Standard.
- Constant F2.8 aperture across a versatile 28-105mm zoom
- Superb portability thanks to a weight of less than 1kg
- Professional features, fast AF and excellent build quality
Supplied accessories: CASE, LENS HOOD LH878-07, FRONT CAP LCF-82 III, REAR CAP LCR II
Available mounts: L-Mount, Sony E-mount
Launch date: September 26, 2024
* Product appearance and specifications are subject to change.
* This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
* L-Mount is a registered trademark of Leica Camera AG.
#SIGMA #SIGMA28105mmF28Art #SIGMAArt #SIGMAArtZoom #SIGMADGDN
Harness the power of this versatile and portable F2.8 optic with an extended 28-105mm focal range – a standard zoom that goes well beyond 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 bright F2.8 aperture throughout, this full-frame mirrorless zoom combines outstanding optical performance, superb build quality and a range of pro-grade features to make it one of the most versatile optics on the market for mirrorless systems.
The lens is built to tackle a huge range of subjects and situations, from expansive low-light landscapes to portraits with big, beautiful bokeh, and thanks to SIGMA’s latest optical technology and the use of large diameter elements including FLD, SLD and five aspherical elements, it is able to do so with superb clarity and sharpness. This allows the lens to deliver exceptional versatility without compromising on optical quality. The lens also includes high-speed AF with HLA technology, a rugged dust- and splash-resistant structure, and various functions such as an aperture ring, all packed into a compact and lightweight body weighing less than 1kg, making it an exceptional all-round choice for both stills and video.
[Key Features]
1. Constant F2.8 aperture across a versatile 28-105mm zoom
Many conventional zoom lenses which have a reach up to 105mm do not offer a constant F2.8 aperture, usually dropping to F4 at the long end. But the SIGMA 28-105mm F2.8 DG DN | Art delivers the same impressive light-gathering and depth-of-field benefits across the whole focal range. The lens offers all of this along with extremely high optical performance thanks to the thorough suppression of optical aberrations within each lens group. And with its outstanding close-focusing capability when zoomed in, macro-style results are also possible.
A versatile F2.8 aperture perfect for portraits and low light
With its fast aperture across the whole focal range, the SIGMA 28-105mm F2.8 DG DN | Art is a true workhorse lens that can be used for almost any type of photography. Scenic photographers can shoot wide-angle landscapes, using the F2.8 aperture for low-light scenes and twilight urban views, while the middle focal lengths tackle dimly lit documentary and street subjects, allowing shutter speeds one stop faster than comparable lenses. At the long end, popular portrait focal lengths from 85mm and 105mm, combined with the F2.8 maximum aperture, produce a shallow depth-of-field that will isolate a subject impressively against large and beautiful bokeh.
Fill the frame with superb close-up performance
Achieving a minimum focus distance of just 40cm across its entire zoom range, the SIGMA 28-105mm F2.8 DG DN | Art can get you closer to your subject, filling the frame with detail and texture. At its 105mm setting, this creates a very useful maximum magnification ratio of 1:3.1 for powerful macro-style results.
Superior optical performance across the full zoom and focus range
The SIGMA 28-105mm F2.8 DG DN | Art operates without compromise, suppressing aberrations very effectively within each lens group, and throughout the entire zoom and focal range. This ensures the lens has a consistent performance even with such a long zoom range. This is thanks to the lens’s premium optical design, which includes two FLD, one SLD and five aspherical elements, the first grouping of which uses a large-diameter 66.4mm element that is extremely difficult to produce and only available thanks to SIGMA’s advanced manufacturing technology at its sole production base in Aizu, Japan.
Designed to minimize flare and ghosting
Using advanced simulation technology, flare and ghosting have been largely eliminated, ensuring that the lens renders rich, high-contrast results in all conditions. In addition, SIGMA’s Nano Porous Coating and Super Multi-Layer Coating have been applied to further suppress flare and ghosting.
Minimal focus breathing
Vital for filmmakers who demand consistent framing, the lens has been designed to keep focus breathing to a minimum. This ensures that any changes to the angle-of-view due to focus shift are minimized across the entire zoom range, ensuring natural-looking focus pulls when recording video, and easier image alignment when focus stacking.
2. Superb portability thanks to a weight of less than 1kg
Standard zooms should be small and light enough for all-day hand-held shooting, so the SIGMA 28-105mm F2.8 DG DN | Art has been designed with portability in mind. It combines five aspherical elements effectively in place to shorten the overall length, and a magnesium-alloy construction around the mount, keeping the weight of the lens to less than 1kg. This ensures the lens has superb portability similar to shorter standard zoom lenses, while providing a wider zoom range.
Excellent optical performance in a streamlined body
By using five aspherical elements in its optical construction, SIGMA has succeeded in significantly shortening the lens’s total length without any compromise to sharpness and image quality. This advanced configuration was only made possible by continuous technological innovation and cutting-edge manufacturing processes at SIGMA’s sole production base in Aizu, Japan.
Smarter design means lower weight
Constant F2.8 zoom lenses can be heavy, but by optimizing the design and materials of each part of the SIGMA 28-105mm F2.8 DG DN | Art, SIGMA has achieved a remarkably light weight of less than 1kg. The use of magnesium-alloy rather than aluminum for the lens barrel around the mount has reduced the weight of these parts alone by two-thirds, while ensuring rigidity.
3. Professional features, fast AF and excellent build quality
In addition to high-speed AF delivered by its linear motor HLA (High-response Linear Actuator), the SIGMA 28-105mm F2.8 DG DN | Art packs in a range of features that help deliver the best possible results in every shooting situation. These include a dust- and splash-resistant structure and water- and oil-repellent coating, as well as a zoom lock switch, a de-clickable aperture ring, AFL buttons and the focus ring for easier handling including shooting with MF.
A linear motor HLA for rapid and accurate AF
The lens incorporates a linear motor HLA (High-response Linear Actuator) that delivers a maximum drive speed, ensuring responsive, precise and smooth AF. With its high level of quietness, the motor also provides noise-free video capability.
An aperture ring for improved ergonomics
For quick changes to exposure, or a more traditional way of shooting, the lens is equipped with a dedicated aperture ring, allowing the user to change aperture via the lens if preferred. An aperture ring click switch is a useful tool for film-makers, and a lock switch helps ensure the aperture ring is not knocked out of its setting accidentally.
Two AFL buttons* for added customization
Located on the side and on top of the barrel, two customizable AFL buttons can easily be reached in either horizontal or vertical shooting positions, ensuring more ergonomic handling.
* Assignment of functions is limited to supported cameras and assignable functions vary depending on the camera.
Zoom lock switch to keep the zoom ring secure
The lens is equipped with a zoom lock switch that holds the zoom mechanism in place at its wide end, preventing it from extending unintentionally under its own weight when carried. The lock can be released by the switch, or by turning the zoom ring for a faster and more flexible workflow.
Weather-resistant structure for challenging conditions
The lens has a dust- and splash-resistant structure* that keeps it free of contaminants in harsh outdoor environments. The front element also features a water- and oil-repellent coating that helps keep it clean in adverse shooting conditions.
* The structure is designed to be dust- and splash-resistant, but not waterproof. Be careful not to bring the lens in contact with a large amount of water. Water inside the lens may cause major damage and even render the lens unrepairable.
Petal-type hood
A dedicated petal-shaped hood is supplied. A locking mechanism is provided for secure attachment.
[ Additional Features ]
- Lens construction: 18 elements in 13 groups (2 FLD, 1 SLD, 5 aspherical elements)
- Inner focus system
- Compatible with high-speed autofocus
- HLA (High-response Linear Actuator)
- Compatible with Lens Aberration Correction
* Only cameras that are compatible with the function are allowed to use this function. Also, the items that can be corrected may vary depending on the camera, or automatic correction may be performed.
* On a camera that allows selecting ON/OFF for lens aberration correction, set the various aberration corrections to ON (AUTO) from the camera menu. - Supports DMF and AF+MF
- Compatible with AF assist (for Sony E-mount only)
- Nano Porous Coating
- Super Multi-Layer Coating
- Water- and Oil-Repellent Coating (front element)
- Aperture ring
- Aperture ring click switch
- Aperture ring lock switch
- AFL button (2 locations)
* Assignment of functions is limited to supported cameras and assignable functions vary depending on the camera. - Focus Mode switch
- Zoom Lock switch (Locks at wide end)
- Support for switching between linear and non-linear focus ring settings (for L-Mount only)
* Only cameras that are compatible with the system are allowed to use the system. - Dust- and Splash-Resistant Structure
* The structure is designed to be dust- and splash-resistant, but not waterproof. Be careful not to bring the lens in contact with a large amount of water. Water inside the lens may cause major damage and even render the lens unrepairable. - Petal-type hood with lock LH878-07
- Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
- Designed to minimize flare and ghosting
- Every single lens undergoes SIGMA’s proprietary MTF measuring system
- 12-blade rounded diaphragm
- High-precision, durable brass bayonet mount
- Mount Conversion Service available
- “Made in Aizu, Japan” craftsmanship
Sigma 28-105mm F2.8 DG DN specifications:
| Principal specifications | |
|---|---|
| Lens type | Zoom lens |
| Max Format size | 35mm FF |
| Focal length | 28–105 mm |
| Lens mount | L-Mount, Sony E |
| Aperture | |
| Maximum aperture | F2.8 |
| Minimum aperture | F22 |
| Aperture ring | Yes |
| Number of diaphragm blades | 12 |
| Aperture notes | Aperture ring click switch Aperture ring lock switch |
| Optics | |
| Elements | 18 |
| Groups | 13 |
| Special elements / coatings | 2 FLD, 1 SLD, 5 aspherical elements |
| Focus | |
| Minimum focus | 0.40 m (15.75″) |
| Autofocus | Yes |
| Motor type | Linear Motor |
| Distance scale | No |
| DoF scale | No |
| Physical | |
| Weight | 995 g (2.19 lb) |
| Diameter | 88 mm (3.46″) |
| Length | 158 mm (6.22″) |
| Materials | Magnesium |
| Sealing | Yes |
| Colour | Black |
| Zoom method | Rotary (extending) |
| Power zoom | No |
| Zoom lock | Yes |
| Filter thread | 82 mm |
| Hood supplied | Yes |
| Hood product code | LH878-07 |
| Tripod collar | No |
Author:
This article comes from DP Review and can be read on the original site.
