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Tamron Super wide-angle 17-35mm f/2.8 Di lens announced

Tamron Super wide-angle 17-35mm f/2.8 Di lens announced - New wide-angle zoom lens design for digital SLR users

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Category : Interchangeable Lenses
Product : Tamron SP AF 17-35mm f/2.8-4 Di LD ASPHERICAL (IF)
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Tamron Super wide-angle 17-35mm f/2.8 Di lens announcedThe SP AF17-35mm F/2.8-4 Di is TAMRON's new ultra-wide zoom lens featuring SP and Di designations. The zoom lens covers an ultra-wide focal length of 17mm considered ideal for Digital SLR use. Since most Digital SLRs have APS-C sized imagers, the angle of view is narrower than that of conventional SLRs making the typical wide end of wideangle zooms insufficient for many applications. Accordingly, there is an increasing demand for lenses with an ultra-wide angle of view to compensate for the imager multiplier factor. At the same time, ultra-wideangle lenses are well accepted for use with conventional SLRs for their ability to add an interesting twist to photographic expression.

 

SP*: "Super Performance"- a line of high performance lenses featuring high design specifications.
Di**: "Digitally Integrated Design" - the designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras.


Main features
High quality images by virtue of Di (Digitally Integrated Design) technology, the optical system designed to meet the performance characteristics of digital cameras, the lens lets you take high quality pictures with Digital, as well as conventional, SLRs.

Attractive and useful focal length, 17-35mm - This new lens provides a desirable "ultra wide" focal length that is useful for conventional SLR photography and acts as "Wide-to-Standard Zoom" equivalent to 28-55mm* for interchangeable Digital SLRs. * In case of APS-C size image sensor

M.O.D. (Minimum Object Distance) 30cm throughout the range Maximum Magnification Ratio of 1:5.4 at the 35mm setting at 30cm (M.O.D.), this ultra wide-angle zoom enables you to take dramatic close-up shots.

Fast maximum aperture of F/2.8 at the wideangle end - The 17-35mm Di features a maximum open aperture of F/2.8 at the 17mm setting, providing you with the advantage of shooting in dimly-lit conditions and helping to prevent camera-shake that leads to blurred subjects.

Aberrations corrected through the use of compound Aspherical & LD elements Image distortion, spherical aberrations and other aberrations have been effectively corrected and eliminated through the use of large compound Aspherical elements, enabling high-definition pictures at any focal length. Moreover, colour aberrations characteristic of wideangle lenses have been diminished through the use of an LD element.
* Includes one LD element and three Aspherical elements

 

Specifications AF17-35MM F2.8-4 DI LD ASPHERICAL (IF)

  • Focal Length 17-35mm
  • Maximum Aperture f2.8-4
  • Angle of View 104° - 63°
  • Optical Construction 14 elements in 11 groups
  • Minimum Object Distance 0.3m (Entire zoom range)
  • Filter Size 77mm
  • Max Mag. Ratio 1:5.4 (at f=35mm)
  • Maximum diameter 83.2mm
  • Length 86.5mm
  • Weight 440g
  • Accessories Bayonet Lens Hood
  • Fittings: Canon AF / Minolta AF-D / Nikon AF-D / & Pentax AF

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