Product Description
This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm (3.4in.), maximum diameter of 74mm (2.9in.), filter size of diameter 67mm and weight of 510g(18.0 ounces).
Customer Reviews:
Soft, VERY Soft.......2007-07-18
I am a amateur photographer, but was encountering situations where I needed a lens of this focal length which could accommodate less available light. My Canon kit lens only goes down to f5.6, and I had heard it was in general a poor quality lens. Well if it is, that makes this Sigma lens nothing but junk.
After receiving the lens, I noticed most pictures were very soft, almost out of focus. So a ran a number of controlled tests against my Canon kit lens, using both Auto focus and Manual focus with the Sigma lens (on a tripod, of course). In all cases, the Canon lens produced MUCH sharper pictures. How could this be, I asked myself.
So I sent the pics and an explanation, along with the lens, to Sigma for repair / adjustment. Two weeks later they returned the lens indicating they had adjusted the AF, and tested the lens, and all was now OK.
I beg to differ. I ran more tests, and guess what! The Canon lens wins again. Needless to say, if you want sharp pictures, forget this lens. You'll probably pay twice as much for the similar Canon lens, but you'll probably get pictures twice as nice.
OUTSTANDING LENS At A Very Affordable Price.......2007-06-28
This lens is an amazing piece of glass at a remarkably affordable price. While I will readily admit a preference for Canon's signature lenses, especially the IS line, this lens is very tack sharp and shows little or no blur with small jitters. For a closer range lens this is a perfect economical choice for those who want to take better portraits.
Used for Basketball with excellent results.......2007-05-17
Purchased to take pictures of High School basketball games and very pleased with the sharp, crisp stop-action pictures.
Good "walk-around" lens.......2007-05-13
This lens is a little heavy on the xti (compared to the 35mm and 50mm primes I normally shoot with). It feels very well made and can focus very close. I think it is a great lens for the money and it performs well.
OUTSTANDING, FAST ALL-PURPOSE LENS AT A GREAT PRICE.......2006-06-09
This is an excellent lens. I have used it extensively on the 1D, Rebel XT, and the 20D. The lens is acceptably sharp for many purposes at f/2.8, and EXTREMELY SHARP stopped down a bit to f/3.5 or f/4.0, at all focal lengths. I have compared it to the Canon 85mm f/1.8, the 50mm f/1.8, and the 35mm f/2.0, all renowned lenses. I find this lens very competitive with - and in some instances, superior to - all of them in sharpness, contrast, and color. Focusing is fast enough for most action purposes, impressive for a non-USM lens.
I also compared this lens to my Canon 28-135mm USM Image Stabilizer lens. I found the Sigma 28-70 f/2.8 to be significantly superior in image quality. I sold the 28-135 IS. This Sigma is virtually always on one of my digital SLR's.
A significant note - INFORMATION AND PICS I HAVE SEEN INDICATE THAT THIS LENS IS SUPERIOR IN IMAGE QUALITY TO THE MORE EXPENSIVE SIGMA 24-70MM F/2.8. I WOULD RECOMMEND SAVING SOME MONEY, GETTING THE CHEAPER LENS, AND GETTING BETTER PICTURES OUT OF IT.
I HAVE USED A LOT OF SIGMA AND CANON LENSES ON MY DIGITAL SLR'S, AND THIS IS ONE OF THE BEST, BAR NONE.
Product Description
This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm (3.4in.), maximum diameter of 74mm (2.9in.), filter size of diameter 67mm and weight of 510g(18.0 ounces).
Product Description
This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm (3.4in.), maximum diameter of 74mm (2.9in.), filter size of diameter 67mm and weight of 510g(18.0 ounces).
Product Description
This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm (3.4in.), maximum diameter of 74mm (2.9in.), filter size of diameter 67mm and weight of 510g(18.0 ounces).
Product Description
This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm (3.4in.), maximum diameter of 74mm (2.9in.), filter size of diameter 67mm and weight of 510g(18.0 ounces).
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Tiffen 67mm UV Protection Filter
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Canon BG-E3 Battery Grip for EOS Digital Rebel XT Camera
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Canon EOS 30D 8.2MP Digital SLR Camera (Body Only)
Lowepro Lens Case 1S (Black)
Lowepro Lens Case 1N (Black)
Tiffen 67mm Photo Essentials Filter Kit
Adorama Slinger Soft Lens Case Small, 5" High x 86mm Diameter, Black.
Sima CapKeeper 2 - Lens cap strap (pack of 3 )
