The Tamron SP 24-70mm f/2.8 Di VC USD G2 Nikon F-mount is a revised fast standard zoom covering a versatile wide-angle to portrait-length range. A sophisticated optical design with two extra refractive elements, three low dispersion elements, three glass-molded aspherical elements, and one hybrid aspherical element helps to suppress aberrations and distortion throughout the zoom range while eBAND and BBAR coatings have been applied to individual elements to control lens flare and ghosting for improved contrast and color fidelity. Balancing its optical attributes, It is also utilizes a USM autofocus motor to deliver notably quick, quiet, and precise focusing performance that suits both stills and video applications. Also, 5-stop-effective Vibration Compensation helps to minimize the appearance of camera shake for sharper handheld shooting in difficult lighting conditions.
(i) Bright f/2.8 constant maximum aperture affords consistent brightness throughout the zoom range, and benefits working in difficult lighting conditions.
(ii) Two XR (extra refractive) and three LD (low dispersion) elements are featured in the optical design to noticeably limit color fringing and chromatic aberrations for improved clarity, color fidelity, and apparent sharpness.
(iii) Three glass-molded aspherical elements and one hybrid aspherical element help to reduce chromatic aberrations and distortion throughout the zoom range to deliver notable sharpness and accurate rendering.
(iv) Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.