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Sigma Japan has today announced a new lens. The 24 - 135 mm F2.8 - F4.5 will be available for Sigma, Canon , Nikon, Minolta and Pentax lens mounts, it has a 77 mm filter size, 50 cm (19.7 in) minimum focus distance and weighs 530 g (17 oz). This lens will no doubt be interesting to digital SLR owners because of its relatively wide angle 24 mm, on the Sigma SD9 this lens would provide an equivelant field of view of approx. 41 - 230 mm, on the Canon EOS-10D approx. 38 - 216 mm and on the Nikon D100 approx. 36 - 203 mm.
A zoom lens with large aperture from 24mm super-wide-angle
From wide angle of view more than 80°at 24mm to standard 135mm zoom lens, large aperture has been achieved. One Special Low Dispersion (SLD) glass element and 2 Aspherical Lenses effectively compensate the color aberration, as well as astigmatism, results in a high level of optical performance. At 24mm focal length this lens has a fast F2.8 maximum aperture.
This lens has a super wide range of angles of view from 84.1°to 18.2°. It incorporates an internal focusing system, which eliminates front lens rotation, allowing use of polarizing filters and Petal type hoods. The lens materials used in this new lens are lead and arsenic free ecological glass.
|Focal length||24 - 135 mm|
|Maximum aperture||F2.8 - F4.5|
|Construction||16 elements in 15 groups|
|Focusing System||Internal Focusing|
|Angle of View (35 mm)||84.1° - 18.2°|
|Number of Diaphragm Blades||9 pieces|
|Minimum Focus Distance||50 cm (19.7 in)|
|Filter Size||77 mm|
|Lens Hood||Petal Hood|
|Dimensions (dia x len)||83.6 (3.3 in) x 90.9 mm (3.6 in)|
|Mounts (AF)||Sigma, Canon, Nikon (D), Minolta (D), Pentax|
|Weight||530 g (17 oz)|