Sigma 18-250mm f/3.5-6.3 DC OS HSM IF Lens for Pentax Digital SLR Cameras

by Sigma

Product Details

• Product Dimensions: 3.1 x 3.1 x 4 inches ; 1.4 pounds
• Shipping Weight: 4 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B001PGXEIS
• Item model number: 18-250mm Pentax
• Average Customer Review: 4.0 out of 5 stars  See all reviews (2 customer reviews)
• Date first available at Amazon.com: November 24, 2003

Product Description

The SIGMA 18-250mm F3.5-6.3 DC OS HSM incorporates Sigma's original anti-shake compensation function, with a 13.8 times zoom ratio. For the camera have anti-shake function in the camera body, this lens's Hybrid Optical Stabilizer provide not only anti-shake function for the camera body compensation, but also provide the function to compensate the image shaking in the view finder of the camera like anti-shake compensation built in the lens. Incorporating four Special Low Dispersion glass elements and three Aspherical lens elements provides excellent image quality throughout the entire zoom range. This lens has a minimum focusing distance of 45cm (17.7 inches) at all focal lengths and a maximum magnification of 1: 3.4 reproduction ratio, making it ideal for close-up photography. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters and the supplied petal-type hood. Incorporating super multi layer coating reduce the ghost in the backlight photography.

Customer Reviews

Most Helpful Customer Reviews

4 of 7 people found the following review helpful:

3.0 out of 5 stars Maybe not a good match to Pentax..., February 10, 2010

By 

L. CHOU (Houston, TX) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Sigma 18-250mm f/3.5-6.3 DC OS HSM IF Lens for Pentax Digital SLR Cameras (Electronics)

I ordered this lens after I saw the photos my friend took with his Canon XTi. The photos were really nice from the Canon & Sigma combo. However, with my Pentax K2000, images tends to come out blurry even when the OS function on the lens was on. I don't know if it's the built-in shake reduction of Pentax camera is causing conflict with the one in the lens? Or I got a defected lens?

The lens is also heavier than my Tamron 70-300mm because of the built-in motor, thus, hard to hold steady by a petite girl like me...

Another thing is, this lens creates a semi-circular shadow on the bottom of images when shooting with 18mm and camera's built-in flash. Thus, one has to use an external flash when he/she needs to shoot wide angle shots in low light.

Anyhow, I'm considering to return it and order the Tamron 18-250mm instead...

1 of 1 people found the following review helpful:

5.0 out of 5 stars lens, September 28, 2010

By 

Tammy A. Dean "t.dean" (USA) - See all my reviews

Amazon Verified Purchase

This review is from: Sigma 18-250mm f/3.5-6.3 DC OS HSM IF Lens for Pentax Digital SLR Cameras (Electronics)

This is an excellent lens. Might mention that you may have to download firmware in order for your Pentax to use the lens in automatic mode. Simple task from Pentax site.