Covers the broadest range ever – from 10mm ultra wide-angle to 24mm – in its class*
The new Tamron ultra wide-angle zoom lens covers the 35mm full-size format equivalent of 16-37mm, for the first time in this class of zoom lenses. This focal length range – 10mm ultra wide-angle to 24mm semi wide-angle – enables the user to enjoy hassle-free wide-angle photography.
Ultra-compact, lightweight design
The new zoom lens covers a wider focal length range, has a greater zoom ratio, and offers a faster maximum aperture than the older SP AF11-18mm F/4.5-5.6 Di II zoom lens (Model A13) and enhanced optical quality. Despite the higher specifications, the new zoom lens is lightweight and compact and accepts the same 77mm filter as its predecessor.
Closest focus distance of just 24cm across the zoom range
Because a close-focusing capability is essential in wide-angle photography, Tamron engineered a 0.24m (9.4") minimum focus distance across the zoom range. This capability gives the user freedom to create images with an exaggerated perspective at the 10mm ultra wide-angle end and shoot with a maximum magnification ratio of 1:5 at the 24mm semi-wide-angle setting, the largest magnification ratio in its class.
Flower-shaped hood is supplied with the lens to shield stray light
Included as a standard accessory, the flower-shaped hood matches the rectangular shape of the image sensor to most effectively block the interference of superfluous light rays entering from outside the borders of the image area, helping to ensure sharp, clear, flare-free images with crisp detail in the shadow areas.
Optical design optimised for digital SLRs
Special glass for high optical performance
The new zoom lens uses a high-precision, large-aperture glass-moulded aspherical lens element and three hybrid aspherical elements to minimise spherical aberration, coma, and distortion. In addition, a pair of LD (Low Dispersion) glass elements and an HID (High Index high Dispersion) glass element together compensate for on-axis and lateral chromatic aberrations, delivering high optical quality.
Optimal angles of incidence of light at the imaging sensor
The new ultra wide-angle zoom lens uses a new optical system designed to confine the changing angles of incidences of light rays reaching the imaging sensor within a certain scope over the entire image field, from the centre to the periphery, addressing the effects of variances caused by zooming.
Enhanced peripheral illumination
Peripheral light fall-off that becomes an image-degrading factor in wide-angle photography is minimised to ensure high optical quality from the centre to the periphery.
As an SP Di II class lens, it provides high optical quality in resolution, contrast, and flatness of image field.
Internal surface coatings reduce ghosting and flare
The lens uses newly developed multiple-layer coatings and internal surface coatings (i.e., multiple-layer coatings on cemented surfaces of plural lenses) to reduce the image degradation caused by the reflection of light rays entering from the lens front and affected by the imager.