Sigma’s New 24-35 mm f/2 DG HSM | Art

June 22, 2015 at 4:22 pm  •  Posted in Gear & Reviews, New Products, Press Release by

New Sigma 24-35 mm f/2 DG HSM | Art

New Sigma 24-35 mm f/2 DG HSM | Art


Press release from Gentec International

Gentec International, the exclusive distributor of SIGMA in Canada, has announced the latest addition to the Art line of lenses, the SIGMA 24-35 mm f/2 DG HSM | Art. SIGMA was determined to create a zoom lens that offers the same brightness and resolution as a fixed focal length lens: in other words, the highest level of optical performance. The result of this challenge was the SIGMA 18-35 mm f/1.8 DC HSM | Art, the world’s first zoom to offer a fast f/1.8 aperture value throughout the zoom range.

Building on this concept, SIGMA has developed the new SIGMA 24-35 mm f/2 DG HSM | Art for the 35-mm full-frame sensor. It allows photographers to carry one lens to do the work of three fixed focal length lenses, a 24 mm, 28 mm and 35 mm — with f/2 brightness and top optical performance. A single lens offering flexible functionality and high convenience. In particular, at the 24 mm and 35 mm focal lengths, this lens offers the performance that is equivalent to that of two prime lenses in the Art line. Instead of changing one high-performance fixed focal length lens for another, simply zoom.

Pricing and availability of the SIGMA 24-35 mm f/2 DG HSM | Art have not yet been announced.

KEY FEATURES

The world’s first large-aperture full-frame zoom lens offering a wide open aperture of f/2 throughout the zoom range
A large-diameter zoom lens covering the full frame image sensor. Optical performance equivalent to a fixed focal length lens throughout the entire zoom range. These are the concepts the SIGMA 24-35 mm f/2 DG HSM embodies. It covers three of the most commonly used prime lenses, 24 mm, 28 mm and 35 mm all in one lens. In order to achieve an attractive bokeh effect at wide aperture, we have developed the world’s first zoom lens for the 35-mm full-frame sensor with an f/2 aperture value throughout the zoom range.*
* Among interchangeable lenses for 35-mm full frame image sensors (June 2015).

Outstanding optical performance of the fixed focal length lenses in SIGMA’s Art line
The SIGMA 24-35 mm f/2 DG HSM builds on the concept of the SIGMA 18-35 mm f/1.8 DC HSM | Art, the world’s first zoom lens to offer f/1.8 brightness throughout the zoom range. Thanks to the outstanding optical performance, the lens provides the quality of high performance fixed focal length lenses in the Art line.

Covering the range of three fixed focal length wide-angle lenses
Delivering excellent functionality and convenience, one lens offers the equivalent quality of three high-performance fixed focal length lenses at f/2 brightness: 24 mm, 28 mm and 35 mm. With a minimum focusing distance of 28 cm and a maximum magnification ratio of 1:4.4, this lens is suitable for close-up shooting, portraits with an attractive bokeh and deep-focus landscape photography. Photographers have access to the angle of view equivalent to that of three wide-angle lenses without having to switch them. While achieving the desired background effect can be difficult with a conventional wide-angle lens, the large diameter of this lens allows photographers to open the aperture wide and use the shallow focus to achieve stunning results.

Incorporating SIGMA’s latest technologies
To realize a large-diameter zoom lens for full frame cameras with f/2 brightness, SIGMA designed each and every part with uncompromising care and quality. The lens incorporates large-diameter aspherical lens elements, which require advanced technologies to manufacture, one FLD (“F” Low Dispersion)* glass and seven SLD (Special Low Dispersion) glass elements, of which two are aspherical lenses. The advanced optics and optimized lens power distribution minimize spherical aberration, axial chromatic aberration and field curvature, resulting in outstanding optical performance. Even at widest aperture, this lens delivers breathtaking image quality.
* FLD glass is the highest level low dispersion glass available with extremely high light transmission.

Convenient handling
The inner focusing system eliminates front lens rotation, enhancing the lens’ stability and allowing use of Circular Polarizing filters. This specification is particularly convenient for shooting video.

ADDITIONAL FEATURES
Minimum focusing distance of 28 cm
With a minimum focusing distance of 28cm and a maximum magnification ratio of 1:4.4, this lens is excellent for close-up photography.

Designed to minimize flare and ghosting
From an early stage in the lens design process, flare and ghosting have been measured to establish an optical design resistant to strong incident light sources such as backlighting. The Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even in backlit conditions. The included lens hood can be attached to block out extraneous light, which can have a negative effect on rendering performance.

Hyper Sonic Motor ensures High AF Speed
The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. By optimizing the AF algorithm, smoother AF is achieved. Also, this lens offers full-time MF by rotating the focus ring of the lens while auto focusing. Without changing the AF/ MF Focus Mode Switch, it allows faster focus adjustment.
* The default setting of Full-time MF function varies for each mount.

Rounded Diaphragm
The 9 blade-rounded diaphragm creates an attractive blur to the out-of-focus areas of the image.

Brass bayonet mount
This lens incorporates a brass bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.

Applicable for the Mount Conversion Service
As an experienced lens manufacturer that has been creating a diverse range of interchangeable lenses, we have started the innovative “Mount Conversion Service.” With this chargeable service, the mount of your current SIGMA lenses can be changed to another mount of your choice. It gives new life to your favorite lenses when you wish to use them on a different camera body.

Customization and flexible adjustment with SIGMA USB DOCK
With the optional SIGMA USB DOCK, you can update your lens firmware, adjust focus points and customize Full-time MF function settings as well as the timing to operate the Full-time MF function. By attaching this lens to a SIGMA USB DOCK, which is connected to a computer, the dedicated software “SIGMA Optimization Pro” offers various types of customization and adjustment.

Evaluation with SIGMA’s own MTF measuring system “A1”
We used to measure lens performance with an MTF measuring system using conventional sensors. However, we’ve now developed our own proprietary MTF (modulation transfer function) measuring system (A1) using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of our quality control inspections. All SIGMA 24-35 mm f/2 DG HSM lenses are checked using “A1” before they are shipped.

“Made in Japan”
All of SIGMA’s manufacturing – right down to molds and parts – with a few exceptions, are carried out under a single integrated production system, entirely in Japan. We are now one of the very few manufacturers whose products are solely “made in Japan.” We like to think our products are somehow imbued with the essence of our homeland, blessed as it is with clean air and water, and focused, hard-working people. We pride ourselves on the authentic quality of SIGMA products, born of a marriage between highly attuned expertise and intelligent, advanced technology. Our sophisticated products have satisfied professionals and lovers of photography all over the world, because our manufacturing is based on genuine craftsmanship, underpinned by the passion and pride of our experts.

 

Specifications (Subject to Change):
Focal Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-35 mm
Minimum Aperture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . f/16
Lens Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Elements in 13 Groups
Angle of View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1°- 63.4°
Number of Diaphragm Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 (rounded diaphragm)
Minimum Focusing Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 cm / 11.0”
Maximum Magnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:4.4
Filter Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82 mm
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diameter: 87.6 mm / 3.4” x Length: 122.7 mm / 4.8”
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 940 g / 33.2oz
Mounts (AF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sigma, Canon, Nikon
Accessories: Case, Petal-Type Hood (LH876-03)