Features
- Lens Construction - 15 Elements in 12 Groups
- Angle of View - 72.4 - 20.2 degrees
- 7 Diaphragm Blades
- Minimum Aperture F22
- Minimum Focusing Distance - 20cm (7.9 inches)
Accessories
Editorial Reviews
Product Description:
This lens has a minimum focusing distance of 7.9 inch (20cm) throughout the entire zoom range. Maximum magnification of 1:2.3 enables close-up photography like a macro lens. The new lens design and multi layer lens coating reduce flare and ghosting, which is a common problem with digital cameras. A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range. This lens offers a large aperture of F2.8 at 17mm wide angle and yet it is compact, with an overall length of 82.5mm (3.2 inch) and diameter 79mm (3.1 inch). It performs superbly even in relatively low light conditions indoors or at dusk. The lens design incorporates an inner focusing system, which ensures fast AF speed as well as prevents the front of the lens rotating, making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods. This lens is also equipped with a Zoom Lock Switch. Maximum Magnification - 1 - 2.3 Filter Size - Diameter 72mm Dimensions - Diameter 79mm x Length 82.5mm, 3.1 x 3.2 inch Weight - 455 grams (16.0 ounces)
Customer Reviews
 Great value, sharp lens by Trace
This lens is an excellent lens for wide angle shots, general macro work, in addition to being solid as a general zoom lens. Great contrast, tack sharp focus and a smooth zoom. Internal focus allows for use of a Circular PL filter, drop-ins etc. Some vignetting at 17mm with attached, non-wide angle filters…not enough an issue for me to rush out for the wide angle drop-in filter adapter. After shooting with one for six months, I’ve bought one for my wife’s D70s rig.
It is fantastic by Haitham J. Jafar
No matter what I say about this lens, it is not enough to give it as much credit as it deserve. Really, I read a lot about this sigma lens before I bought it, and when it did arrive it is totally different. Check my macro shots in my flickr www.flickr.com/photos/engineeroo
worth the money!!! by chris
I was looking for a lense that would replace my nikkor 18-55mm lens. I wanted somthing around the same zoom range, and mabe with a little more reach if possible. I spent hours looking up reviews and asking questions all over the internet! I fnially came up on the sigma 17-70mm lense, which is the perfect range!! 17mm is pretty wide-angle and its great for pretty much anything like family group shots or senic shots. and the 70mm is great for macro photos of flowers, plants and bugs all the way down to portrait close up shots. and to make the lense even better, its macro!! you will not believe how close you can focus with this lense! it will blow you away!! it will also open up a new and different world of photography for you! the lense is also very very sharp, which was the most important thing for me in finding a lens.
Overall, i highly reccomend this lens!! its an awsome all-around lens thats well worth the money!! you will not regret spending aound $300 for it. once you try it, you will fully understand what im talking about! BUY IT!!
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