Sigma 18-125mm f/3.5-5.6 DC IF Aspherical Zoom Lens for Pentax and Samsung Digital SLR Cameras

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Product Details

• Product Dimensions: 5.5 x 4.3 x 4.3 inches
• Shipping Weight: 2 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B0002CNYUO
• Item model number: B0002CNYUO
• Average Customer Review: No customer reviews yet. Be the first.
• Date first available at Amazon.com: June 17, 2003

Product Description

From the Manufacturer

Sigma Corporation is pleased to announce the launch of the new 18-125mm F3.5-5.6 DC. This zoom lens was exclusively designed for use with digital Single-Lens Reflex (SLR) cameras and has 6.9 times high magnification zoom ratio. Image circle is designed to match the size of the image sensor of digital SLR cameras. A Special Low Dispersion (SLD) and two pieces of aspherical glass elements produce high level of optical performance through the entire zoom range and also this has resulted in a compact, lightweight lens. This lens has a minimum focusing distance of 50cm (19.6in.) at all focal lengths and equipped with inner focusing system. Since the front of the lens does not rotate, "Petal Shaped Hood" and a circular polarizing filter can be easily attached and used. This lens is also equipped with "Zoom Lock Switch" that eliminates "Zoom Creep."

An image sensor element larger than those corresponding to APS-C cannot be used in digital cameras or 35mm SLR cameras. If such an element is used vignetting will occur on the picture surface.

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

This zoom lens was exclusively designed for use with digital Single-Lens Reflex (SLR) cameras and has a 6.9:1 zoom ratio. The image circle is designed to match the size of the image sensor of digital SLR cameras.From wide angle to telephoto, this new zoom lens can capture a wide range of subjects. As there is no need to change lenses, there is no risk of missing those great shots. This lens has a minimum focusing distance of 50cm (19.6in.) at all focal lengths and a maximum magnification of 1:5.3. A distance scale on the focus ring makes the lens convenient and easy to use.Sigma's vast experience has been gained over many years in the development of advanced optical technology and film camera production. This experience was crucial to the development of the SD9 and SD10 digital SLR cameras. Sigma took digital characteristics into consideration when designing the lens power layout and created the most suitable lens.