Tamron 17-50mm F/2.8 XR Di II SP for Canon
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 – Tamron’s Super Performance series delivers a range of lenses that meet the highest standards.
XR (Extra Refractive Index) Glass – A special glass with a particularly high refractive index for greater performance and a compact lens design.
ASL – Hybrid aspherical elements ensure unique image quality and compactness.
LD (Low Dispersion) – Lens element for greater image sharpness and the correction of chromatic aberration.
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 (ZL) Mechanism – Protects against undesired extension of the lens barrel.
The stock listed above does not take into account variances in stock levels that may occur and any items on hold.