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Sigma introduce the 24-135mm f/2.8-4.5 zoom lens - Sigma's new lens has large aperture of f/2.8-4.5
Sigma are showing the 24-135mm f/2.8-4.5 zoom lens to PMA 2003.The 24mm wide-angle gives more than 80 coverage and ranges up to a useful 135mm telephoto setting with its angle of 18.2. One Special Low Dispersion (SLD) glass element and two Aspherical Lenses effectively compensate the colour aberration, as well as astigmatism, results in a high level of optical performance. At 24mm focal length this lens has a fast f/2.8 maximum aperture.
The lens incorporates an internal focusing system, which eliminates front lens rotation, allowing easier use of polarizing and graduated filters or petal type hoods. The lens materials used in this new lens are lead and arsenic free ecological glass.
|Minimum Aperture :||F32|
|Lens Construction||16 Elements in 15 Groups|
|Focusing System||Internal Focusing|
|Angle of View||84.1-18.2|
|Number of Diaphragm Blades||9|
|Minimum Focusing Distance||50cm (19.7in)|
|Lens Hood||Petal Hood|
|Dimensions Diameter||83.6mm (3.3")X Length 90.9mm (3.6")|
|Mounts (AF)||Sigma, Canon, Nikon (D), Minolta (D), Pentax|