Tamron 10-24mm f3.5-4.5 Di II LD AF SP Aspherical (IF)


The Tamron AF SP 10-24mm f3.5-4.5 Di II LD Aspherical Canon Fit Lens (IF) features an huge 2.4x zoom ratio, unprecedented in its class of ultra wide-angle zoom lenses. The innovative, high-performance ultra wide-angle zoom lens is designed exclusively for SLRs with APS-C sized image sensors. The SP AF 10-24mm Di II from Tamron is the first-ever ultra wide-angle lens for digital SLR cameras and features a focal length range with the 35mm equivalent of 16mm ultra wide-angle to 37mm semi-wide-angle in a user-friendly lightweight, compact design. This Tamron lens is so versatile that photographers can use it to be super creative, capture fantastic views or extraordinary close-ups, bold compositions and unique perspectives. 

Di II lenses are constructed for the exclusive use on digital SLR cameras with smaller-size imagers (not bigger than 16x24mm) and featuring optical systems optimized to meet the performance characteristics of digital SLR cameras including:

1. High resolution
2. Minimization of peripheral light fall-off
3. Minimization of scattered light behavior
4. Minimization of chromatic aberration

Low Dispersion
LD Elements are produced of special glass materials which possess an extremely low color dispersion index (a unit which measures the ability of a glass to separate a beam of light in its spectral colors). LD elements compensate for chromatic aberration, which is particularly a problem with telephoto lenses. Chromatic aberration is a form of optical noise which reduces the sharpness and the brilliance of an image.

Super Performance
Tamron´s Super Performance series is a line of high performance lenses featuring high design specifications.

As a rule conventional lens elements have a constant radius (spherical), i.e. one can imagine that they are cut from a ball (sphere). This simple lens form, however, has disadvantages in terms of image defects. Thanks to innovative production technologies the trend is increasingly going over to the use of aspherical lenses. These lenses have, a surface which deviates from the ball form. Especially the correction of spherical aberration and coma can be strongly improved with these asphericals. Moreover, the distortion is compensated by means of aspherical lenses.

Internal Focus
Lenses of customary design have a front lens group which shifts when focusing. Internal focus lenses reach the sharp position by shifting (an) inner lens element(s). Here Tamron has developed the so-called Integrated Focus Cam which allows quick and exact focusing. Moreover, the MFD can also be reduced with the internal focusing, as well as image defects like vignetting. Another advantage is the stationary focus-ring regardless of the zoom position. The front element of the lens also does not turn which is important when using filters which dependent on direction (e.g., polarization filters).

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