Tamron Zoom Super Wide Angle SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] Autofocus Lens for Canon EOS Digital Cameras

BH #TA175028CAF • MFR #AF016C-700
Tamron
Tamron Zoom Super Wide Angle SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] Autofocus Lens for Canon EOS Digital Cameras
Discontinued
WARNING: Not compatible with "full-frame" (35mm size) cameras.
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Tamron SP 17-50mm f/2.8 XR Di II LD Aspherica... Overview

  • 1Description
  • 2Optimized for Digital SLR
  • 3LD Glass
  • 4Enhanced Peripheral Illumination
  • 5Internal Surface Coating to Reduce Ghosting and Flare
  • 6Zoom Lock Mechanism

The Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical [IF] is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras. The focal length of this lens is equivalent to approx. 26-78mm in 35mm format.

This lens offers an f/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure.

Note:
Di-II lenses cannot be used with digital SLR cameras using image sensors that are larger than that of an APS-C size imager (e.g. 1D series), or with 35mm film SLR cameras.

Optimized for Digital SLR

The use of XR (Extra Refractive Index) glass optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness. In addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system.

LD Glass

An LD (Low Dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom range.

Enhanced Peripheral Illumination

Peripheral light fall-off is minimized when compared with that of conventional lenses for film cameras, so images are uniformly bright from the center to the periphery.

Internal Surface Coating to Reduce Ghosting and Flare

By employing "Internal Surface Coatings" (i.e., multiple-layer coatings on cemented surfaces of plural elements) and multiple-layer coating technology on ordinary elements, ghosting and flare due to the reflections that occur when light enters through the front element and reflections caused by the imagers themselves are reduced to the absolute minimum.

Zoom Lock Mechanism

The Zoom Lock prevents unwanted barrel extension when carrying the lens/camera combination.
UPC: 725211167013

Tamron SP 17-50mm f/2.8 XR Di II LD Aspherica... Specs

Focal Length17 to 50mm (35mm Equivalent Focal Length: 27.2 to 80mm)
Maximum Aperturef/2.8
Minimum Aperturef/32
Lens MountCanon EF-S
Format CompatibilityAPS-C
Angle of View78° to 31°
Minimum Focus Distance10.63" / 27 cm
Maximum Magnification0.22x
Optical Design16 Elements in 13 Groups
Diaphragm Blades7
Focus TypeAutofocus
Image StabilizationNone
Filter Size67 mm (Front)
Dimensions (ø x L)2.9 x 3.2" / 7.37 x 8.13 cm
Weight15.17 oz / 430 g
Packaging Info
Package Weight1.43 lb
Box Dimensions (LxWxH)5.75 x 4.375 x 4.25"
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