SIGMA 24-35mm F2 DG HSM Art F/CANON

SIGMA 24-35mm F2 DG HSM Art F/CANON

Μάρκα: SIGMA
Προιόν: SIGMA 24-35mm F2 DG HSM Art
Διαθεσιμότητα: 1 έως 6 ημέρες
Τιμή: 1.084,00€

Βίντεο γυρισμένο στη Σαντορίνη που δείχνει τις καταπληκτικές ιδιότητες του φακού.

 

την κατασκευή του φακού

 
 

Τέχνη | 24 χιλιοστά F1.4 DG HSM

  • FLD γυαλί
  • SLD γυαλί
  • Ασφαιρικού φακού
  • Ασφαιρικά SLD ΦΑΚΟΣ
  •  

Προδιαγραφές

 
 
Κατασκευή φακού 18 στοιχεία σε 13 ομάδες
Ελάχιστο άνοιγμα F16
Φίλτρο μεγέθους φ82㎜
Οπτική γωνία (ισοδύναμο με 35mm) 84,1 ° -63,4 °
Ελάχιστη απόσταση εστίαση 28 εκατοστών / 11.0in.
Διαστάσεις (διάμετρος x μήκος) Φ87.6mm x 122,7 χιλιοστά / 3.4 in. X 4.8 in.
Αριθμός λεπίδων διαφράγματος της 9 (στρογγυλεμένες διαφράγματος)
Μέγιστος λόγος μεγέθυνσης 1: 4.4
Βάρος 940 g / 33,2 ουγκιά

Όλα τα στοιχεία που υπολογίζονται από την SIGMA. Εμφάνιση και οι προδιαγραφές υπόκεινται σε αλλαγές χωρίς προειδοποίηση.

Corresponding AF Mounts

SIGMA / NIKON / CANON

Nikon mounts do not have an aperture ring. Some functions may not work depending on the camera model.
This lens is incompatible with film SLR cameras with the exception of the Nikon F6 and Canon EOS-1v.

 

AWhile offering the premier optics of the Art line, this lens covers 24mm, 28mm, and 35mm focal lengths.

Incredible performance overturns the conventional perception of a zoom lens.

Instead of changing one high-performance fixed focal length lens for another, simply zoom. A new zoom lens for 35mm full-frame sensor that offers the quality of a fixed focal length lens at various angle of view.

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 18-35mm F1.8 DC HSM | Art, the world’s first zoom to offer a fast F1.8 aperture value throughout the zoom range. Building on this concept, SIGMA has developed the new SIGMA 24-35mm F2 DG HSM | Art for 35mm full-frame sensors. It allows photographers to carry one lens to do the work of three fixed focal length lenses, a 24mm, 28mm and 35mm – with F2 brightness and top optical performance. One package delivers flexible functionality and convenience. In particular, at the 24mm and 35mm focal lengths, this lens offers performance equivalent to that of two prime lenses in the Art line.

Art line delivers high-level artistic expression.

SIGMA is organizing all its interchangeable lenses into three product lines: Contemporary, Art and Sports, each with a distinctive concept. Designed with a focus on sophisticated optical performance and abundant expressive power, our Art line lenses deliver high-level artistic expression. With astonishing rendering performance, they are perfect for landscapes, portraits, still-lifes, close-ups, and general snapshots. They’re made for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies and many other scenes.

Lens specifications

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The world’s first* large-aperture full-frame zoom lens offering a wide open aperture of F2 throughout the zoom range

A lens for 35mm full frame sensor with F2 aperture value 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 SIGMA 24-35mm F2 DG HSM | Art embodies. It covers the focal range 24-35mm, and 24mm, 28mm and 35mm are the commonly used prime lenses among photographers. 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 F2 aperture value throughout the zoom range*.

*Among 35 digital camera interchangeable lenses according to SIGMA research (June, 2015).

Covering the range of three fixed focal length wide-angle lenses

Delivering excellent functionality and convenience, one lens offers quality equivalent to that of three high-performance fixed focal length lenses at F2 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 angles of view equivalent to those of three wide-angle lenses without having to switch lenses. 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

FLD glassSLD glassAspherical lensAspherical lens

To realize a large-diameter zoom lens for full-frame cameras with F2 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 element; 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 conventioinal 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.

Enhanced handling

The inner focusing system eliminates front lens rotation, enhancing the lens's stability and allowing use of circular polarizing filters. This is particularly convenient for shooting video.

The 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 F1.8 brightness throughout the zoom range. Thanks to its outstanding optical performance, this lens provides the same quality as the high-performance fixed focal length lenses in the Art line.

Flare and ghosting reduction

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. SIGMA’s Super Multi-Layer Coating reduces flare and ghosting to help photographers produce 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.

Exclusive low-dispersion glass

The degree to which light is refracted by glass depends on the light's wavelength. This fact causes different colors of light to focus at slightly different points. The result is chromatic aberration, the color fringing that is particularly noticeable in telephoto lenses. Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. Yet residual chromatic aberration known as “secondary spectrum” may still remain. To minimize this secondary spectrum, which can be a serious issue with conventional lenses, SIGMA lenses feature up to three types of exclusive low-dispersion glass offering superior performance: ELD (Extraordinary Low Dispersion), SLD (Special Low Dispersion) and FLD (“F” Low Dispersion). In particular, FLD glass offers ultra-low dispersion in combination with high transmittance and the anomalous dispersion characteristics of fluorite. Meticulous deployment of these types of exclusive low-dispersion glass and optimization of power distribution gives SIGMA lenses superlative image rendition undiminished by residual chromatic aberration.

SIGMA lens technology

 
 
 
 

 

 

Rounded diaphragm

When photographing with point light sources such as electric lights or reflections on a body of water in the background, the rounded 9-blade diaphragm helps produce an attractive bokeh effect—even at large-aperture settings.

Distortion

Distortion guide

Distortion

Vignetting

Distortion guide

 

周辺光量

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The finest in materials, usability and functionality

 refined, integrated design made with the photographer in mind.

All lenses in SIGMA’s new Art line come with a hood with a high-quality rubberized connector and feature a newly designed lens cap and AF/MF switch, and are designed for intuitive use and superior functionality. Inside, HSM (hypersonic motor) delivers high AF speed and extremely quiet performance. An enhanced algorithm offers even smoother automatic focusing. Full-time manual focus override is another key feature that leaves the artistic touches in the photographer’s hands. The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens. In both the external and internal parts, the optimized use of TSC (Thermally Stable Composite), an excellent match for metal parts, further contributes to the high-precision construction of the lens. In addition, the last three digits of the year the lens was offered for sale are engraved on the barrel for ease of reference.

Hyper Sonic Motor ensures high AF speed

The Hyper Sonic Motor (HSM) 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 autofocusing. It allows faster focus adjustment without the need to use the AF/MF Focus Mode Switch.

*The default setting of the Full-time MF function varies for each mount.

 

TSC (Thermally Stable Composite)

Conventionally it is considered essential to leverage the qualities of metal and polycarbonate in camera and lens layout design. A first for the industry, the barrel of the new series of SIGMA lenses features a new TSC (Thermally Stable Composite)* that offers minimal thermal shrinkage combined with exceptional hardness. It also offers 25% greater elasticity than polycarbonate. Since its thermal shrinkage is low, TSC matches well with metal parts, further contributing to the high-precision construction of the lens. 
*TSC (Thermally Stable Composite) offers thermal expansion characteristics similar to those of aluminum. Parts made with TSC deform less, making possible lens construction of extremely high precision. As compared to polycarbonate containing 20% glass, a commonly used material, TSC offers approximately 70% higher elasticity. As compared to polycarbonate containing 30% glass, it offers 25% higher elasticity. (Comparison is between SIGMA-produced components.)

High-precision, rugged brass bayonet mount

The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.