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Sigma 24-35mm f/2 DG HSM Art Lens

World's first large aperture full frame wide angle zoom lens offering f/2 throughout the zoom range.

|  Interchangeable Lenses
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Sigma 24-35mm

Sigma has announced what they claim to be the first large aperture wide-angle full-frame zoom lens offering f/2 brightness throughout the zoom range. 

Sigma say the 24-35mm f/2 DG HSM, which is part of the Art range of lenses, has the outstanding optical performance of the fixed focal length lenses in Sigma's Art line but covers the range of three fixed focal length wide-angle lenses.

It's designed so that photographers can carry a 24mm, 28mm and 35mm lens in one. The lens will be available in Sigma, Canon and Nikon mounts. Pricing and availability is still to be confirmed.

 

Sigma 24-35mm f/2 DG HSM 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 24-35mm f/2 DG HSM embodies. It covers three of the most commonly used prime lenses, 24mm, 28mm and 35mm 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 35mm full frame sensor with an f/2 aperture value throughout the zoom range*.

* Among interchangeable lenses for 35mm full frame image sensors (June, 2015).

 

Outstanding optical performance of the fixed focal length lenses in SIGMA’s Art line

The SIGMA 24-35mm F2 DG HSM builds on the concept of the SIGMA 18-35mm F1.8 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: 24mm, 28mm and 35mm. With a minimum focusing distance of 28cm 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.

 

Sigma 24-35mm

 

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.

This optical glass has a performance equal to fluorite glass which has a low refractive index and low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics give excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass and ensures high definition and high contrast images.

 

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.

 

Minimum focusing distance of 28cm

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.

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View Directory Page : Sigma Imaging (UK) Ltd

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Comments


JackAllTog Plus
11 6.1k 58 United Kingdom
19 Jun 2015 10:32PM
Wow this would be fun in low light event photography.
How much would this cost, what filter size is it?
21 Jun 2015 2:33PM
I think the filter size is 82mm

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