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Tamron 17-50mm F/2.8 XR Di II SP Lens For Nikon
  • Tamron 17-50mm F/2.8 XR Di II SP Lens For Nikon | Internal Focusing (IF) System | Zoom Lock (ZL) Mechanism

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Item Code: DCDLTR0080 Part Number: 104A16NII

Tamron 17-50mm F/2.8 XR Di II SP Lens For Nikon
Internal Focusing (IF) System
Zoom Lock (ZL) Mechanism

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Tamron 17-50mm F/2.8 XR Di II SP for Nikon


Lightweight. Fast. Super Performance

Setting high-performance DSLRs free with SP engineering, strengthened by F/2.8 maximum aperture advantages.
One of two Tamron 17-50mm F/2.8 offerings, the image integrity and compositional options afforded by the SP 17-50mm F/2.8 Di-II’s wide-to-moderate-telephoto zoom characteristics are prized by experienced photographers. Both versions of the SP 17-50mm F/2.8 stem from the long-successful SP 28-75mm F/2.8—originally designed for 35mm film SLRs. Later refined to meet the needs of high-resolution digital SLRs with APS-C-format sensors, and like its further refined variant (the SP 17-50mm F/2.8 XR Di-II VC, model B005), the 17-50mm renders a picture angle range approximating a 26-78mm lens on a full frame DSLR or a 35mm SLR. A fast and constant F/2.8 maximum aperture benefits photographers in several ways, including the ability to render cluttered backgrounds well out of focus, expanded low-light shooting freedom and a brighter viewfinder image. With its mildly less complex optical formula and without tri-axial VC (Vibration Compensation), the SP 17-50mm F/2.8 Di-II (model A16) stands out as a remarkable value and a favorite of passionate photographers.


Super Performance

Super Performance – Tamron’s Super Performance series delivers a range of lenses that meet the highest standards.


Extra Refractive Index

XR (Extra Refractive Index) Glass – A special glass with a particularly high refractive index for greater performance and a compact lens design.


ASL

ASL – Hybrid aspherical elements ensure unique image quality and compactness.


LD

LD (Low Dispersion) – Lens element for greater image sharpness and the correction of chromatic aberration.


Internal-Focusing (IF)-System

Internal Focusing (IF) System – The extension length of the lens does not change during focussing and the close focussing distance is significantly reduced across the entire focusing range.


Zoom Lock

Zoom Lock (ZL) Mechanism – Protects against undesired extension of the lens barrel.


Minimum Focus Distance 10.6" (.27m) (over the entire zoom range)
Diaphragm Blades 7 (circular apertures)
Size (Diameter x Length) Ø2.9 in. x 3.3 in. (Ø73.8mm x 83.7mm)
Focal Length 17-50
Maximum Aperture F/2.8
Max. Mag. Ratio 1:4.5 (at f=50mm, MFD 0.27m)
Minimum Aperture F/32
Standard Accessory Flower-Shaped lens hood
Weight 15.5 oz (440g)*
Lens Construction 16 elements / 13 groups
Angle of View 78°45' - 31 °11' (APS-C size equivalent)
Return & Exchange 14 Days
Manufacturer Warranty 3 Years
Manufacturing Defect Exchange 30 Days