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Obiettivo Sigma 18-35mm f/1.8 DC HSM (Art) per Sony (A-Mount)
From 16,14 €Details
10 rate da 72 al mese + una da 36.
Imp. di bollo: 16,00 € - Importo totale dovuto euro: 772
|Nota:||The technical data are provided by the manufacturers. Futek.it accepts no responsibility for inaccuracies and / or omissions that were found.|
|Availability:||Available (1 PZ)|
Card additional description:
Objective 18-35mm Sigma f / 1.8 DC HSM (A) Art for SonyPREZZO VAT INCLUDED, ABSOLUTELY NEW PRODUCT PACKED AND INVOICE, 2 YEAR WARRANTY
What features should have your zoom lens ideal?
Some are essential: large maximum aperture, versatility in recovery, possibility of making portraits and indoor photography. To this we add a compact design and a good zoom range.
SIGMA 18-35mm F1.8 DC HSM is the first zoom that offers the maximum aperture of F1.8 at all focal lengths. It is a large-aperture standard zoom lens for digital SLR cameras with APS-C format. The focal length of the lens is, in 35mm format, to that of a zoom 27-52.5mm.
Its great brightness allows the photographer to give free rein to creativity in any situation.
1.La our online Art produces images of high artistic
Sigma has reorganized its production goals in three lines called: Contemporary, Art and Sports. Conceived with the aim of obtaining results of sophisticated expressiveness, our online Art allows images of high artistic level. Developed by giving maximum emphasis on the needs of artistic photography, has been designed to meet the needs of those wishing to have superior image quality without sacrificing compactness and ease of use of the lens. Portraits, landscapes, still life, macro and snapshots: Line Art is ideal to reveal the artist within you. Best suited for photography in studio provides high quality results even in architectural photography, filming underwater and in many other genres of photography.
2 Great ease of use
The zoom lens is very useful because it offers a wide variety of focal lengths, only to rotate the zoom ring. The fact is that no zoom is brighter than F2.8. The need to have a brighter lens brings the photographer, who want a greater brightness, choose a fixed focal length. This choice, however, forces him to carry many goals as there are focal wish to use. The SIGMA 18-35mm F1.8 DC HSM belongs to a new generation of lenses with a maximum aperture of F1.8 at all focal lengths. Thanks to this, the image you see in the viewfinder is very bright and allows the photographer to better control the focus and framing. In comparison to a F2.8 lens, aperture of F1.8 allows the photographer to be more creative and use shutter speeds faster or play better on the depth of field. From wide-angle to normal, this zoom lens offers the same quality and versatility of the corresponding fixed lenses.
3 The result of cutting edge technology
To obtain a wide-angle zoom with a maximum aperture of F1.8 must overcome several technical difficulties.
More than the maximum aperture increases, the depth of field, offering the lens, decreases. The design objective is complicated because you have to correct numerous aberrations, such as spherical and axial chromatic astigmatism due to the curvature of field.
To correct the astigmatic aberration over the entire zoom range we have used the experience gained in achieving our super wide-angle zoom such as the SIGMA 12-24mm F4.5-5.6 II DG HSM SIGMA 8-16mm F4.5-5.6 DC HSM.
In addition, the innovations introduced at our factory in Aizu contribute to improving the production of our goals. These innovations have allowed us to build large glass aspherical lens that, along with the glass SLD (Special Low Dispersion), has optimized the transmission of light in the various optical elements and compensated for aberrations such as field curvature at wide-angle focal.
Thanks to the accumulated knowledge for a long time, in achieving goals and using the latest construction techniques, SIGMA has successfully managed to build a zoom lens F1.8 brightness in all its focal lengths.
4 Easy to handle
Easy to handle thanks to the auto-focus and internal zoom, which do not change the size of the lens, nor do they rotate the front lens during focusing or zooming. Therefore, it is possible to use special filters, such as the circular polarizer.
5.Realizzato to minimize flare and ghosting
The flare and ghosting were monitored from the start of design to arrive at a target that responds well in both situations the incident light, both in backlit situations. The Super Multi-Layer Coating reduces flare and ghosting and provides high-contrast images recorded even in backlit shots. Additional protection against stray light is the lens hood petals, supplied as standard.
Minimum focusing distance of 28cm at the minimum focusing distance of 28cm and a maximum magnification of 1: 4.3, this proves to be an excellent macro lens.
Hypersonic motor HSM (Hyper Sonic Motor) allows for Auto Focus AF fast and silent. Thanks to the optimized AF algorithm, was achieved a higher precision AF. Finally: At any time you can focus manually, with the simple rotation of the focus.
Diaphragm 9-blade rounded diaphragm, which is used in high values ??of openness produces a blurred creative very pleasant.
The concept of new product lines adopt a graft rubber lens hood as standard. To better use the appearance of the lens cover and the cursor AF / MF have been improved. To ensure accuracy, all metal parts and those made with the new material (TSC Termally Stable Composite), very similar to the metal, are manufactured in our factory. To know with certainty the year of the launch, on the lens barrel are engraved three-digit identification.
Graft objectives brass The lens adopts a bayonet brass for greater precision and durability. A special surface treatment also increases its resistance to prolonged use.
DOCK USB exclusive for the new lens line E 'possible to update the lens firmware and adjust parameters such as focus, inserting it into the USB DOCK, sold as an accessory connected to the computer and controlled by software "SIGMA Optimization Pro".
Lens Construction 17 elements in 12 groups
Viewing Angle (SD1) 76.5 º -44.2 º
Number of diaphragm blades 9
Mininum Aperture f16
Minimum focusing distance 28 cm / 11.0 in
Filter Size (mm) 72 mm
Maximum magnification of 1: 4.3
(Diameter x length) 78 mm x 121.0mm / 3.1in. x 4.8in.
Weight 28.6 oz
The photographs and information provided are indicative, if some feature is essential for you, it is always advisable to verify the effective presence on the manufacturer's website or chiedendocene confirmation before ordering.
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