Sigma 28-300mm f/3.5-6.3 Macro Lens for Pentax SLR Cameras

by Sigma

Product Details

• Item Weight: 1 pounds
• Shipping Weight: 2 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0000CBILH
• Item model number: 793-109
• Average Customer Review: 3.5 out of 5 stars  See all reviews (2 customer reviews)
• Date first available at Amazon.com: October 1, 2003

Product Description

From the Manufacturer

This new Hyperzoom provides a tremendous range of focal lengths (a 10.7:1 ratio), providing exceptional flexibility of composition, and allowing one to follow the movement of a subject throughout a wide range, without having to miss great shots while changing lenses. By utilizing a multi-group zoom cam system, this lens maintains a more consistently high level of performance throughout the focal length and focusing ranges. It also allows this lens to focus closer in the critical wide-angle ranges, than other zoom lenses in this focal length category. This Hyperzoom also provides high optical performance due to the use of Special Low Dispersion (SLD) and Aspherical Glass. It offers excellent portability because of its compact design, and since the front lens barrel does not rotate during focusing or zooming, the use of polarizing and graduated filters, and of a "perfect hood" to minimize flare, is greatly simplified. For many photographers, this is truly a universal lens.

Corresponding AF Mount

• Sigma, Canon, Minolta, Nikon(D) and Pentax

Product Description

NEW SIGMA 28-300MM F3.5-6.3 MACRO , LIGHTWEIGHT , COMPACT AND A ALL IN ONE LENS. This versatile , all purpose zoom lens can capture a wide ranging series of subjects using its wide angle , ultra-telephoto and close -up capabilities.

Customer Reviews

Most Helpful Customer Reviews

3.0 out of 5 stars Nice optics. Poor mechanics., February 21, 2008

By 

Ryan Ruta (Rochester, NY) - See all my reviews
(REAL NAME)   

This review is from: Sigma 28-300mm f/3.5-6.3 Macro Lens for Pentax SLR Cameras (Electronics)

I bought this lens as my primary lens for use with my Pentax K100D Camera. For the price, I would have to say that this lens is very good. The quality of the pictures that I have taken with this lens is excellent. This is a great multi-use outdoor walk-around type lens with the right f-stop range and wide zoom range that make it adaptable to many different situations.

However, I have found a couple of negatives about this lens. The biggest problem that I have had is that the mechanical components associated with the zoom are not very smooth. The design is poor and I have actually had to repair the lens a couple of times because a small screw inside keeps coming loose. When the screw gets loose the lens will just slide in and out and becomes "disengaged" from the zoom dial on the outer case that you would normally use to zoom the lens in and out. The auto focus is not great either. Sometimes it "hunts" and other times it can be practically useless.

Basically though, it has served me well as a starter lens, but I'll definitely upgrade at some point.

4.0 out of 5 stars great travel lens for Pentax K10D, November 11, 2007

By 

BBooDad (Baraboo, WI) - See all my reviews

Amazon Verified Purchase

This review is from: Sigma 28-300mm f/3.5-6.3 Macro Lens for Pentax SLR Cameras (Electronics)

I got this lens for a Disney cruise in the Western Carribean this Fall, wishing for a one-lens solution. Had to settle for bringing the 18-55mm too, but this lens is the one I mostly used, and enjoyed.

My only complaints are that it is a little stiff in adjusting the zoom, and that the flare limiter thingy (great technical term, huh?) was a little loosish, though it never fell off. The lens cap usually comes off in my Lowepro Slingshot bag though. The tightness wasn't a problem in the Caribbean, but I'll have to see how it performs in Wisconsin winters.

All of this being said though, it is a great lens. It functions flawlessly with my Pentax K10D, allowing the camera sensor image stabilization to work very well. (Despite nary a word from Pentax or Sigma about compatibility, so I was sweating it). I would have liked to have the new Tamron 18-250 even more perhaps, for more wide-angle range, but the 300mm reach was very nice. It was decently fast, and the clarity was good. Very worth the money. If it wasn't for the minor issues above, I would have given it 5 stars. Most importantly, it works with tbe Pentax image stabilization system.