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Sigma introduce 24-60mm f/2.8 EX DG - New lens designed for digital SLR owners
- Fast f/2.8 constant aperture
- Compact Design of just 87mm in length
- Minimum focusing distance of 38cm with a maximum magnification ratio of
- Two Special Low Dispersion (SLD) glass elements and four aspherical glass elements for maximum image quality
- Internal focusing to allow use with circular polarizing filters and a petal
- Zoom Lock eliminates 'zoom creep'
Sigma's new 24-60mm F2.8 EX DG lens is a compact zoom lens with a large aperture. With an overall length of 84.7mm, it is the smallest zoom lens in its class. It is capable of taking pictures at close quarters, with a minimum focusing distance of 38cm at all focal lengths and a maximum magnification ratio of 1:5.8.. It is a very effective lens for close-up photography.
Two Special Low Dispersion (SLD) glass elements are provided for effective
compensation of color aberration, which is a common problem with wide-angle
lenses. Four aspherical lenses, one moulded glass type and three hybrid aspherical
types, offer excellent correction for distortion as well as all types of aberration.
The design concept of this lens is especially suitable for the characteristics
of Digital SLR Cameras.
New coating reduces flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance.
Sigma claim the lens has excellent correction for "vignetting", which is a common problem of large aperture lenses. The design ensures sufficient illumination of the corners of the image.
SPECIFICATIONS OF AF 24-60mm EX DG
Focal Length 24-60mm
Minimum Aperture f/22
Lens Construction 16 Elements in 15 Groups
Focusing System Inner Focus
Angle of View 84.1 - 39.6
Number of Diaphragm Blades 9pcs
Minimum Focusing Distance 38cm (14.9")
Maximum Magnification 1:5.8
Filter Size (diameter) 77mm
Lens Hood Petal Shaped Lens Hood
Dimensions Diameter 83.6mm (32.9") X Length 87mm (34.2")
Mounts (AF) Sigma, Canon, Nikon (D), Minolta (D) and Pentax
Weight 555 gms / 19.5oz
Availablity Sigma AF, Canon AF, Nikon AF-D - June 2004
Minolta AF, Pentax AF - TBA