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() 17-70mm F2.8-4 DC MACRO OS HSM (Canon mouth)

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US $1028.69
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  • Specifications:

    Product Weight: 500.00g
    Bayonet: Canon bayonet
    Breed: SLR lens
    Type: Standard Zoom
    Brands: Sigma
    Origin of goods: Japan
    Product Show:

    Sigma (SIGMA) 17-70mm F2.8-4 DC MACRO OS HSM (Canon mouth)
    Product InformationProduct Information
    Sigma new classification
    Sigma will all of its new interchangeable lens summarized as three product lines, C-Contemporary, A-Art and S-Sports, namely aesthetic, artistic and sports.Sigma equipped with the latest technology, combined with light volume and outstanding optical performance, achievement of high quality C-Contemporary Avantgarde product line.
    Product featuresProduct Function
    The latest C-Contemporary Series Lens
    Sigma newest C-Contemporary Series 17-70mm F2.8-4 DC MACRO OS HSM Lens for everyone on the standard zoom lens, such as too short closest focusing distance, focal length, shooting vision deficiency, or aperture not consume more amount of light, etc. dissatisfaction, providing solutions.Arranged in a standard zoom lens digital SLR camera, its most important function is to mirror the body slim and easy to carry, creating the highest image quality, to meet the requirements of different scenes.This is a suitable daily use, use of photographic topics covering the majority of the lens to 35mm cameras, for example, covering up to 25.5-105mm most commonly used focal lengths; has a maximum aperture of up to F2.8, coupled with the slim volume , this amazing service.Hunting shot Trolltech encountered journey, or family life, bit by bit, can be creative to eleven full earnings record.This is specially designed to be able to carry around any time, easy to use and can meet any requirement of users.
    Sigma (SIGMA) 17-70mm F2.8-4 DC MACRO OS HSM (Canon mouth)

    1, can take the opportunity to meet all of the C series lenses

    Sigma using new optical technologies to address slim and lightweight while maintaining the lens barrel, nor at the expense of advanced optical performance and application problems, developed 17-70mm F2.8-4 DC MACRO OS HSM new lens is the first C-Contemporary Series support products, with a wide focal length to 35mm cameras, for example, covering up to 25.5-105mm focal lengths most commonly used.As a high-performance, versatile, lightweight and easy to carry rolled into one lens, uses broad, can handle a variety of shooting opportunities, challenges all the scenes.

    Sigma (SIGMA) 17-70mm F2.8-4 DC MACRO OS HSM (Canon mouth)

    2 excellent macro function

    Recent focal length is 22cm and the magnification of 1:2.8, and in the 70mm focal length, the closest working distance of only 5.52cm, so the use of long focal length shot, but also like a macro-like feel, therefore, without changing the lens, can also be Shooting such as jewelry and flowers close-up screen.The overall design of the lens carefully, even lettering mirror body position is completely accurate, make sure you have a clear view.

    Sigma (SIGMA) 17-70mm F2.8-4 DC MACRO OS HSM (Canon mouth)

    3 volume than the older version reduced by 30%

    To cope with daily use, the lens should be slim and portable size.So, this lens is arranged more miniature OS optical stabilization system, try to play a tight structure and the power of optical components, so that the tube size becomes more compact; To make this lens more sophisticated, the use of metal parts with more affinity The new composite materials TSC (Thermally Stable Composite) applied to the lens barrel, the achievements of a more durable components, and fewer finer scale ring and zoom ring, the overall size can be 30% less than the previous version, more suitable for daily use, easy to photo hunting changeable different environments.

    4 consistently high image quality throughout the entire zoom
    Arranged two identical natural fluorite performance of FLD (Ying-class extra-low dispersion) lens, and a SLD (Special Low Dispersion) lens and three aspherical lenses, including a double-sided aspherical lens, the effective elimination Enlarge image made of chromatic aberration and axial chromatic aberration and other phenomena, to ensure brilliant image sharpness.From infinity to macro at all focal lengths are able to provide high quality, exquisite clear image.By Sigma's unique "A1" MTF test system validation, ensuring quality excellence, demonstrated ability to disseminate high.
    5 Configure F2.8 maximum aperture
    Available on the widest focal length (17mm) with F2.8 maximum aperture, and in the telephoto focal lengths (70mm) you can use F4 maximum aperture, providing a bright viewfinder, to help focus and composition; large aperture and also provide other useful functions, such as using a faster shutter coagulation screen, preventing the body becomes dim, hazy, or create stunning bokeh effect.
    Product FeaturesSelling Point
    With OS (optical stabilization system)
    Equipped with Sigma exclusive OS (optical stabilization system), can enhance the four shutter speed function effectively compensate for camera operation generated jitter, especially in macro shooting, Xieshao of Songmeng can also easily be found, and this lens will be able to reduce this happens, strengthen confidence photographer.
    In addition to ghosting and flare to make the design
    To achieve flagship lens performance early in the design, has a special focus flare and ghosting prevention study, which developed a strong effective against incident light source, such as backlighting; lens through Sigma's super multi-layer coating technology lapping process, although in addition to flare and ghosting, backlit environments can also provide sharp, high-contrast images.
    Set rounded aperture blades
    The use of seven circular aperture blade design, creation charming bokeh effect, create an atmosphere, highlighting the subject.
    Include CNC supersonic autofocus system (HSM)
    Equipment HSM (NC supersonic autofocus system) to ensure quiet autofocus quickly, while turning the focus ring, compatible with full-time manual focus function.Strengthening autofocus operation, the auto focus more supple, each focusing both reliable and accurate shooting.
    Made of copper mount
    Use copper-made mount, when combined with the camera is more accurate, stable and durable.Surface specially treated to increase strength, improve quality, and can withstand the test of long-term use, a total break with your shooting in harsh environments.
    New R & D, new product lines exclusive, Sigma ad hoc "USB" connection slots
    In response to the new Sigma product line, we have developed a unique ad hoc Sigma Software (SIGMA OptimizationPro), take advantage of this special USB connection trough the lens and computer link, you can freely update the lens firmware, or adjustment such as focus position other areas.This lens is self-renewal setting new device, only Sigma.
    Sigma's unique MTF measurement system "A1"
    In the past the use of traditional sensor test Sigma lens MTF to measure its performance.Now, we have developed from home patents, the use of 46-megapixel Foveon full color image sensor body MTF (modulation transfer function) measurement systems "A1".Previously difficult to detect high-frequency detail, and now we can also be incorporated in the scope of the validation.This Sigma 17-70mm F2.8-4 DC MACRO OS HSM lens in the market before, but also by "A1" testing to ensure superior quality.

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