Sigma 24-60mm f/2.8 EX DG IF Aspherical Wide Angle Zoom Lens for Sigma SLR Cameras

by Sigma

Product Details

• Item Weight: 1.2 pounds
• Shipping Weight: 2 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0002ALDR2
• Item model number: B0002ALDR2
• Date first available at Amazon.com: July 21, 2004

Product Description

From the Manufacturer

From super-wide-angle of 24mm this lens has a very compact design as well as a large-aperture. By effective arrangement of Special Low Dispersion (SLD) and aspherical glass elements, this lens has compact dimensions of 83.6mm (32.9") maximum diameter, and 84.5mm (33.2") length. It is capable of taking pictures from a close distance, minimum focusing distance is 38cm at all focal lengths, and has a maximum magnification ratio of 1:5.8. Two Special Low Dispersion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of Glass Mold Aspherical and three pieces of Hybrid Aspherical, total four pieces of aspherical lenses offer excellent correction for distortion as well as all types of aberration. The new lens coating reduces flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance.

The design concept of this lens is especially suitable for the characteristics of Digital SLR Cameras. The high performance inner focus system is particularly suitable for using circular polarizing filters and a petal-type hood as the front of the lens does not rotate. This lens is also equipped with Zoom Lock Switch that eliminates Zoom Creep. This remarkably compact high performance zoom lens is ideally suited for traveling.

Aspherical lenses
Lens elements that are not spherical can reduce the total number of elements required in a lens design. They can deliver better performance while reducing weight and size.

Aspherical lenses maximize optical performance while minimizing lens size and weight. Aspherical lenses help reduce some of the problems usually associated with wide angles and zooms, such as lens flare and edge distortion.

They also help deliver higher quality telephoto images.

Internal Focusing
For our mid-range lenses, we use an internal focusing system that moves inner lens groups to allow a shorter minimum focusing distance. All while retaining a constant physical lens barrel length.

Product Description

From super-wide-angle of 24mm this lens has a very compact design as well as a large-aperture. By effective arrangement of Special Low Dispersion (SLD) and aspherical glass elements, this lens has compact dimensions of 83.6mm (3.29") maximum diameter, and 84.5mm (3.32") length. It is capable of taking pictures from a close distance, minimum focusing distance is 38cm at all focal lengths, and has a maximum magnification ratio of 1:5.8. Two Special Low Dispersion (SLD)glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of Glass Mold Aspherical and three pieces of Hybrid Aspherical, total four pieces of aspherical lenses offer excellent correction for distortion as well as all typesof aberration. The new lens coating reduces flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance. The design concept of this lens is especially suitable for the characteristics of Digital SLR Cameras. The high performance inner focus system is particularly suitable for using circular polarizing filters and a petal-type hood as the front of the lens does not rotate. This lens is also equipped with Zoom Lock Switch that eliminates "Zoom Creep". This remarkably compact high performance zoom lens is ideally suited for traveling