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Sigma 17-70mm f/2.8-4.5 DC IF Macro Lens for Canon Digital SLR Cameras | 
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This product is Avalailable for USA Customers. If you live outside USA Search Below For U.K. and Germany Products.
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| Brand: Sigma
Category: Photography
List Price: $369.99
Buy New: $319.00
You Save: $50.99 (14%)
New (10) from $319.00
Avg. Customer Rating:  26 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Fragile: No
Batteries Included: No
Optical Zoom: 4
Maximum Focal Length: 70
Minimum Focal Length: 17
Shipping Weight (lbs): 1
Dimensions (in): 3.2 x 3.2 x 2.1
MPN: B000EGAMBW
Model: B000EGAMBW
UPC: 085126669270
EAN: 0085126669270
ASIN: B000EGAMBW
Release Date: January 31, 2006
Availability: Usually ships in 1-2 business days
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| 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) |
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| 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)
Amazon.com Product Description
Designed for Canon digital SLR cameras, the Sigma 17-70mm f/2.8-4.5 macro lens performs superbly even in relatively low light conditions, such as indoors or at dusk. The lens incorporates an inner focusing system that provides a fast autofocus speed while also preventing the front of the lens from rotating. This makes it particularly suitable for use with circular polarizing filters and petal-shaped lens hoods. The lens is also equipped with a zoom lock switch that eliminates "zoom creep" during transportation. And thanks to the special low dispersion (SLD) element and two aspherical elements, the lens corrects for all types of aberrations and produces a high level of optical performance throughout the entire zoom range. Other features include a minimum focusing distance of 7.9 inches, a maximum magnification ratio of 1:2.3, and a multilayer lens coating that reduces flare and ghosting. All Sigma lenses carry a one-year warranty. p bSpecifications/bbr ul liFocal length: 17-70mm liMaximum aperture: f/2.8-4.5 liLens construction: 15 elements in 12 groups liAngle of view: 72.4 to 20.2 degrees (Sigma SD format) liNumber of diaphragm blades: 7 liMinimum aperture: f/22 liMinimum focusing distance: 7.9 inches liMaximum magnification: 1:2.3 liFilter size: 72mm liCorresponding AF mounts: Canon liDimensions: 3.1 inches in diameter and 3.2 inches long liWeight: 16.0 ounces liWarranty: 1 year /ul
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| Customer Reviews: Read 20 more reviews...
 Good lens. Just what I'm looking for. November 26, 2008
After going through two very different lenses, I found this one to fit my style of photography. I wanted a lens that could take very good close-up pictures as well as everyday photos. I'm still an amateur but the lens is really easy to use and gives a good wide shot view. I think I'll be using this one from now on until I decide on something new. Overall, good lens.
 Great all-around lens - sharp and light October 16, 2008
I bought this lens as a backup for my 24-70 f2.8 L. Now this is a lens I keep on most of the time, mostly because it's much lighter than 24-70L. I saw some reviewers complaining about it being soft at extremes. My copy is tack sharp wide open, including 17mm and 70mm. I was not able to find a setting on which this lens produces soft images. I use it on Canon 20D.br /br /Autofocus is fast, and while not as quiet as Canon USM lenses, it's not noisy. The front element does not rotate, so using a polarizer is not an issue. You can't use manual focus ring when lens is set to AF (as possible on Canon L lenses), but most people never do anyway.br /br /The lens is 2.8 at the wide end, which matches 24-70 (and so does image quality). At the long end it's 4.5, so you do lose an f-stop or so, but this lens is half the weight and third the price of 24-70. Plus it has additional range 17-24, which is quite needed on 1.6x bodies.br /br /The built is quite solid. It does have some zoom creep though - set it to 70mm and point upwards, and it will slide back to 30mm or so. This is not a big deal (unless if you shoot with one hand), but it does not happen on L lenses.br /br /Overall, I highly recommend it - get your own, you won't be sorry.br /
Nice lens - if you can get a good one. September 24, 2008
I went through two of this lens to get a good one. The zoom range is perfect for a walk-around lens. Would be nice if the tele end is a bit longer, but then image quality would be compromised. Build quality is very good - feels solid and heavy. Zoom ring rotates smoothly. It produces colors so accurate that I almost don't have to adjust color tones in post processing. Sometimes it can misfocus for no reason. I'm not crazy about the 'velvet' finish on Sigma lenses and prefer a 'traditional' black finish, but it looks ok and keeps surfaces clean. 72mm front end (along with the included petal lens hood) may look a bit intimidating for the small size of the lens. In general, good job by Sigma.
Great all around lens August 16, 2008
I have found this to be a great all around lens. The pros of this lens are that it does a really great job focusing and has very sharp pictures in most situations. It is very fast. I have captured bees in flight and have been amazed with the clarity. The color is spot on. I am used to having to adjust the color/saturation in photoshop after uploading photos. I rarely have to do so with this lens. I also love that you can get very close to the subject and still focus. Makes macro type work very enjoyable. This isn't a true macro lens but it does a very nice job as "almost macro". br /The cons are: this is a heavy lens. I would not want to carry this around my neck all day long. That is a pretty minor con..definitely wouldn't deter from buying. It also does poor in low light. I had to shoot a wedding after sunset and this lens was very soft (focus) in such conditions. br /It can be soft (focus) at the end (70mm) also. br /br /I would highly recommend this lens if you want to replace the kit and have a great lens that rarely leaves the camera.
Great "Walkaround" Lens at a great price! August 12, 2008
1 out of 1 found this review helpful
I was looking for a good every day lens that I could take with me on a trip to San Francisco this past summer but being just a light hobbyist, I didn't want to spend the money for the high cost of some of the canon lenses like the 17-40L or the 17-55IS. So after reading alot of the helpful reviews here, I decided I would give this lens a shot and I'm very happy that I did.br /The image quality on this lens is far better than the kit lens that came with my Canon XTI 400D. It actually feels like a whole different camera now. Pictures are sharp and the contrast and color the lens produces are head and shoulders above the kit lens. Also the extra reach this lens has over the kit lens comes in handy too. br /At 17mm, the f/2.8 really works well indoors in lowlight situations, but it does stop down quickly...at 20mm, it already jumps to f3.5 and quickly goes up from there. The lens focuses fast and not as loud as I'd expected(going off of some other reviews) and the build quality is good also.br /br /Some extra bonuses that I was happy about...br /The Macro feature is a definite bonus, I can zoom into an object that's right up against the lens and it'll still focus well. The lens even came with a hood as opposed to having to buy a separate lens hood($45)for a canon lens.br /br /A few things that were on the negative side...br /The lens does tend to hunt in very low-light situations and there is some barrel distortion when shooting wide. Also it's much larger than the kit lens but you do get ALOT more lens so the trade off in weight is well worth it. Plus, I have a battery grip on my XTI which nicely balances it out.br /br /Overall, the pros for this lens far outweigh any cons that this lens might have. It's nearly half the cost of the 17-40L f/4, and almost a third of the cost of the 17-55IS f/2.8. For someone that mainly shoots as a fun hobby on weekends, this was the perfect lens to fit my needs.
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