Obiettivo 35mm-F/1.4-AF (A) DG HSM
Many enthusiast photographers prefer to use moderate wide-angle 35mm instead of the traditional 50mm . With an innovative design and technology , thanks to a avanguardi we have improved the performance of this focal length , so as to exploit the full expressive potential of the latest digital cameras .
Accessories : Lens hood ( LH730 -03) , housing
• Design and Specifications are subject to change without notice
1. The Art offers our line of high artistic quality
Sigma has broken all its interchangeable lenses in three lines. Contemporary , Art and Sports . Designed to offer the best optical performance with great expressive power , our online Art allows you to express in the best way your qualities as an artist. Our objectives Line Art, designed to emphasize the most artistic flair of the photographer, are designed to satisfy the desires of those who appreciate , in a goal, the best results combined with compact size and functional use . Riprendiate landscapes, portraits, still-life , close-up photographs or snapshots, the objectives of the Art line are ideal for taking pictures that reveal your artistic side. Suitable for studio photography , achieve the purpose of maximum expression even when shooting architecture , the night skies , the underwater world , and many other types of photography . SIGMA 35mm F1.4 DG HSM lens is the first line of the Art
2 . Fixed against the aberrations of color reaches unparalleled heights of expression
The aberration is very important for a target . In building a lens capable of high performance is paramount aberration correction . Chromatic aberration can be corrected during post production of the image. This is not possible with the axial aberration . This lens has optical glass lenses FLD ("F " Low Dispersion ) that have the same behavior of fluorite lenses and optical glass lens SLD ( Special Low Dispersion ) lens that optimize the function , so as to correct both the ' chromatic aberration, both the axial one . The objective ensures high quality at any distance focus . Moreover , thanks to the use of aspherical lenses , the defects of astigmatism and field curvature are corrected in an optimal way . The result is an even better resolution in the peripheral areas of the image.
3 . Large maximum aperture of F1.4
In 2005 he presented a Sigma lens aperture F1.4 built for digital SLR cameras : the " SIGMA 30mm F1.4 EX DC HSM ." Since then we have continued to build performance targets by degrees , that incorporate cutting-edge optical technology. For example, the normal lens for full-frame sensor SIGMA 50mm F1.4 EX DG HSM and the medium telephoto largemouth SIGMA 85mm F1.4 EX DG HSM . Our current goal SIGMA 35mm F1.4 DG HSM is the fourth to join a great expressive power with an aperture of F1.4 . In the photograph at F1.4 wide-angle ensures images of perfect scoring conjugated to a nice blur effect in out of focus areas .
4 . Pleasant blur effect
The correction of chromatic aberration leads to greater incision point light peripheral areas of the image , so the function is widely used in the filming astrophotography and artificial light. With this correction is also possible to determine a nice blur effect in out of focus areas of the image. The use of aspherical lenses as principal ensures image brightness in the peripheral and distortion correction . Helps to create a nice blur effect in the out of focus areas of the image, the nine-blade diaphragm .
5 . Floating system of internal focus
The floating system of internal focusing compensates for astigmatic aberration and spherical one . It also allows to achieve high results in the close-up photography .
6 . Designing taking account of the flare and ghost images
This objective peak reaches its high performance thanks to an optical construction that minimizes flare and ghosting defects , even in situations of special lighting , such as in backlight . Treatment Super Multi-Layer Coating reduces flare and ghosting and provides photographs clearly etched and contrast even in backlit scenes .
7 . Hypersonic Engine
The HSM (Hyper Sonic Motor ) ensures autofocusing quick and quiet along with the manual focus , obtainable by the simple manually turn the focusing ring to focus. Thanks to an improved AF algorithm , the auto focus achieves better accuracy.
8 . Bayonet Lens Brass
The lens is equipped with bayonet brass which ensures precision and durability. A special treatment of its surface increases the wear resistance .
9 . Ease of use
The new lenses use a special rubber coating for grafting of the lens hood . To make it easier to use the cover has been improved and the cursor AF / MF . To better ensure the accuracy of the product, all metal parts and those made with the new material (TSC Termally Stable Composite) very similar to the metal, are made in-house.
10 . Exclusive "USB DOCK" designed for new lines of objectives
Designed specifically for the new line of targets , we have developed a special software ( SIGMA Optimization Pro ) can upgrade the firmware of the lens and adjust some parameters , such as the focus.
11 . Evaluation by the MTF measurement system SIGMA "A1"
To measure the performance of the MTF of the objectives we have always used conventional sensors . Today, we have developed a proprietary system MTF referred to as " A1" based on direct image sensor 46 megapixel Foveon . Details that before, in the high frequencies , were not detectable , now they are, thanks to our quality control system . The SIGMA 35mm F1.4 DG HSM have been checked before being put on the market, with the methodology "A1" .
12 . Made in Japan
All Products Sigma , and also all their parts , are built entirely in Japan, thanks to an integrated production system . We are one of the few Japanese manufacturers that can boast dell'interamente "Made in Japan" . We like to think that our products are imbued with the spirit of our national clean air and water , hardworking people . We are proud of the product quality Sigma , born from the union of qualified experience and cutting edge technology. Our sophisticated products , always find favor with professionals and amateurs of photography in the world because they are born from a craftsmanship driven by passion and pride in a job well done.
* Prices may vary depending on the attack.
Lens construction: 13 elements in 11 gruppiApertura Minimum F16Diametro filters : ø67mmAngolo shooting : ( 35mm equivalent ) 63.4 ° Minimum focus distance : 30cmDimensioni ( diameter and length ) x ø77mm 94mmNumero of diaphragm blades : 9 ( rounded diaphragm ) maximum magnification ratio : 1:5.2 Weight: 665 gr