Tamron Pentax SP 17-50mm F/2.8 Di II LD Aspherical (IF) w/ hood AF016P700

Category: Lenses, Pentax K-Mount, SLR, Tamron

Vendor: Tamron

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Tamron Pentax SP 17-50mm F/2.8 Di II LD Aspherical (IF) w/ hood 

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.


Focal Length 17 - 50mm
Aperture Maximum: f/2.8
Minimum: f/32
Camera Mount Type Pentax K
Format Compatibility Pentax Digital (APS-C)
Angle of View 78° - 31°
Minimum Focus Distance 10.63" (27 cm)
Magnification 0.22x
Maximum Reproduction Ratio 1:5
Elements/Groups 16/13
Diaphragm Blades 7
Image Stabilization No
Autofocus Yes
Tripod Collar No
Filter Thread 67 mm
Dimensions (DxL) Approx. 2.9 x 3.2" (7.37 x 8.13 cm)
Weight 15.17 oz (430 g)
Packaging Info
Package Weight 1.4 lb
Box Dimensions (LxWxH) 5.9 x 4.4 x 4.3"

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