Sigma 28-70mm f/2.8-4 DG AF Lens for Canon EOS / EF

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Product Details

• Item Weight: 8.6 ounces
• Shipping Weight: 2 pounds (View shipping rates and policies)
• ASIN: B000H38ANO
• Item model number: Sigma-2870mm-DG-Canon
• Average Customer Review: 3.9 out of 5 stars  See all reviews (9 customer reviews)
• Amazon.com Sales Rank: #4,079 in Camera & Photo (See Bestsellers in Camera & Photo)
• Date first available at Amazon.com: December 12, 2006

Product Description

Product Description

The Sigma 28-70mm f/2.8-4 DG zoom lens offers a large aperture of F2.8 at 28mm focal length and yet it is compact and lightweight, with an overall length of 62.5mm and weight of 255g. (9oz.). This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This compact, large aperture zoom lens is ideal for digital and 35mm SLR cameras. The size and weight of this standard lens makes it very suitable for landscape photography, and snapshots. DG is a designation Sigma uses on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras.

Customer Reviews

Most Helpful Customer Reviews

8 of 9 people found the following review helpful:

4.0 out of 5 stars Great value for the money, January 18, 2008

By	M. Taylor - See all my reviews (REAL NAME)

Sigma 28-70mm f/2.8-4 DG Aspherical Large Aperture Zoom Lens for Nikon SLR Cameras

I was looking for a zoom lens for indoor sports shots. I didn't want to pay the big bucks of $750 to $1500. The Sigma fit the bill. At 2.8 it gives enough light for a decent shutter speed. The quality appears good as well. Although I have not blown pictures to 20x24, I can not tell the difference compared to expensive lens I have rented costing ten or fifteen times more. It also works well for indoor and flash photos. For my money, it does what I need.

3 of 3 people found the following review helpful:

4.0 out of 5 stars good lens, but focus can be better, February 10, 2009

By	C. Suyat (CA, USA) - See all my reviews (REAL NAME)

i first bought this lens because of the price and the minimum aperture of f2.8

ive read the reviews before hand, and they basicly all hold up. the lens is louder than my old canon EF lens, but that doesnt bother me and shouldnt be the main concern.

my only gripe is the focusing. my 20D has a small screen so im not really able to tell what in focus or not. after i took a couple of pics and looked at them on computer, they came out a little blurry. even with alot of light and a fast shutter. i then started to try other things to see whats up. i found that using a tripod made all the difference. other than the focusing, this lens is good for the price. nice aperture, sharp, compact,

update:

after knowing more about photography, it is no surprise that at f/2.8 it is not the sharpest. great DOF but like others said the focus is soft/ off

after doing some test. (on a tripod with manual setting to keep exposure constant, autofocus on, canon 20D) i found that at 28mm, around f/9 is the sharpest. at 70mm f/13. hoepfully this will help out some people.

2 of 2 people found the following review helpful:

5.0 out of 5 stars Great value for the price! Sharp lens!, May 16, 2009

By	ruben - See all my reviews

I am a Semi-Professional Photographer and this lens is great for the price. It takes sharp images, good color and contrast. I have had no issue with the auto focus on this lens contrary to other reviews, maybe I got a good copy. It is also very fast! Works fine in low light conditions in or outdoor. Good walk around lens for the money, I own several Sigma lenses because I know a good deal when I see one. It is sturdy enough if you are not too hard on it and besides you should not ever drop your lens or your camera! Canon makes great lenses but they don't have great prices and I am sure you all agree with that. Great for beginners and someone who needs a descent lens for the price. It is as sharp as a nifty fifty at 50mm. I recommend you buy this lens.