Wider and longer than others in its class, the Tamron 10-24mm f/3.5-4.5 SP AF Di-II LD Asph. (IF) Lens is a compact, lightweight, high-performance lens for DSLRs with APS-C size sensors. It provides 35mm equivalent coverage from 16mm ultra-wide to 37mm semi-wide, with a remarkable 2.4X zoom ratio. With a maximum coverage of over 108, this state-of-the-art classic is the perfect solution for expanding your visual horizons.
The Tamron SP designation is reserved for lenses developed with special emphasis on extraordinary photographic performance. Engineers are free to innovate in an uncommon atmosphere where optical performance comes before price, resulting in lenses that satisfy the demands of discerning photographers.
Tamron was first to offer the 10-24mm ultra wide-angle 2.4X zoom perspective for digital SLRs, successfully resolving numerous optical engineering challenges. Rendering picture angles approximating 16 to 37mm in the 35mm (film) or full-frame DSLR formats, landscapes, streetscapes, architecture and confining interiors come to life beautifully. Images exhibit negligible distortion in normal use, butif the photographer choosesspectacular effects can be introduced by disregarding the camera's relationship to level.
This is the magnifying factor of a lens. Macro lenses will often be described by their “magnification factor”. A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject.
The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs.
A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject. A 1:1 magnification factor is usually considered the minimum for a lens to be described as a “macro” lens. Specialist macro lenses are often 1:3 or even 1:10 magnification factors, meaning that 1mm across the subject becomes 3mm or 10mm when projected onto the sensor, thus 3 or 10 times magnification.