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Sigma 17-70mm f/2.8-4.5 DC HSM Macro Lens for Nikon DSLR | 
| Brand: Sigma
Category: Photography
List Price: $369.99
Buy New: $339.00
You Save: $30.99 (8%)
Rating:  6 reviews
Media: Electronics
Fragile: No
Batteries Included: No
Maximum Focal Length: 70
Minimum Focal Length: 17
Shipping Weight (lbs): 1.1
Dimensions (in): 3.1 x 3.1 x 3.1
MPN: B000UC26CS
Model: B000UC26CS
UPC: 085126689599
EAN: 0085126689599
ASIN: B000UC26CS
Shipping: Eligible for Super Saver Shipping
Availability: Usually ships in 24 hours
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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:
Amazon.com Product Description
Sigma's 17-70mm DC macro lens is an ideal large-aperture standard zoom lens for Nikon digital SLR cameras with APS-C size image sensors, making it suitable for a wide variety of subjects. The lens offers a minimum focusing distance of 7.9 inches throughout the entire zoom range, along with a maximum magnification of 1:2.3 for close-up macro photography. The new lens design and multilayer lens coating, meanwhile, reduce flare and ghosting--a common problem with many digital cameras. Add in a Special Low Dispersion (SLD) glass element and two aspherical lens elements and you have a lens that can correct all types of aberrations while producing a high level of optical performance at every interval. The lens also offers a large aperture of F2.8 at the 17mm wide-angle setting, yet is notably compact, with an overall length of 3.2 inches and a diameter of 3.1 inches. Plus, it performs superbly even in relatively low-light conditions, such as indoors or at dusk. Users will also appreciate the inner focusing system, which provides a fast autofocus speed while preventing the front of the lens from rotating, making it particularly suitable for use with circular polarizing filters and petal-shaped lens hoods. Also equipped with a zoom lock switch that eliminates "zoom creep" during transport, the lens weighs 16 ounces and carries a one-year warranty.
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)
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| Customer Reviews: Read 1 more reviews...
A great lens for my D40 November 1, 2008
K. Wedgworth
This lens has replaced my Nikon D40's 18-55mm kit lens as the one that stays on my camera most of the time. It outperforms the kit lens in every way. It is sharper, has better reach at 70mm, and 2.8-4.5 aperture. There has been little chromatic aberration in shots where I would have expected it.
The near macro capability is nice.
It is quite a bit larger and heavier than the kit lens, but I don't consider that much of an issue. I didn't care for the front lens cap that was included (difficult to remove with the lens hood on). I bought a Nikon lens cap instead.
 Does its job, and does it well. August 17, 2008
Ian M. Mcclintock (Midwest USA)
3 out of 3 found this review helpful
I'm not a professional photographer, just an enthusiast with ambitions and using a D50. I got this lens to replace the 18-55mm kit lens that came with the camera. While that lens' image quality was admittedly pretty good, I wanted something beefier, and something that could go up to 70mm to close the gap with my 70-210 telephoto. This lens has the best set of features in this particular zoom range out of all the shopping around I did. Wide aperture, at least at the wide-angle end, and macro capabilities really made it for me.
It's a good deal heavier than the Nikon kit lens, and it also feels more solid. The zoom and focus rings feel firm without being too slow. The front element is quite large, which I'm okay with. It might just be my imagination but the extra 1mm at the wide-angle end seems noticeable. Though I wouldn't say it's a perfect lens to use for dedicated macro work, it can certainly perform in a pinch.
Only a couple quarrels with it. The shorter focal lengths are sort of bunched up at one end of the zoom ring, so you need to use a fine touch to get the framing right at times. I don't find it to be especially problematic, but it is a bit strange. The zoom ring itself turns counterclockwise rather than clockwise like I'm used to, so that requires a bit of adaptation. The way I hold a camera, it's a bit awkward to twist the ring to my left and then reposition my grip on it.
My biggest gripe is that it doesn't quite autofocus properly at night or in low light situations (such as a dim room). I like to play around with night photography, and on more than one occasion the lens would hunt through its entire focal length, from 0.2m out to infinity and back again, cruising straight past where it needed to be. I found myself frequently flipping to manual focus, and finding out when I got home that what looked in focus through the tiny viewfinder (with my glasses pressed up against it) was in fact a little bit off. It can get a bit exasperating at times, when the lens simply refuses to focus on the subject you're pointing it right at.
EDIT: This autofocus problem seems to be primarily related to turning the camera vertically, and not as much low-light. Who knows why. I've started turning the camera back a bit to let it autofocus and then orient it vertically and frame the shot. A little annoying, but it doesn't change my opinion that this is still a great lens.
Otherwise, everything else is great. One star off for the various little gripes, but if you can find it used for under $350, as I did, it's a really good lens for the money.
Fast, sharp, and simply amazing June 16, 2008
Guy Montag (Dallas, TX)
2 out of 2 found this review helpful
This lens is simply amazing. From wide-angle interior shots, to portraits, or macro type work, it does it all with exceptional results. It's a fast lens, as fast as you'll get outside of a prime lens, which makes it great for low-light work. The wide angle at 17mm means you can get a ton of stuff in the frame, which is especially useful in crowded or tight environments when you can't step back ten feet from what you're shooting. The out of focus areas produces beautiful bokeh (japanese word for 'out of focus area' heh). A close-up shot of a flower at 70mm @ f/4 displays the flower itself very sharply, with all of the background blurring out, which looks incredibly beautiful.
If you could only get one lens, this would be the best one to choose. I've had it for about a year now, and out of all my lenses, it's the most useful and versatile and if I have any doubts about the conditions I'll be shooting under, I put this one on the camera.
Indespensable April 8, 2008
Bo Ostergaard Jepsen (Beijing, China)
11 out of 11 found this review helpful
I was quite surprised by this lens after I first got it. It is quite sharp (not scalpel sharp at 2.8, but good nonetheless), it focuses very close to your subject (2 inches?) and equally important: it covers a really good range, 17-70mm. It's wide enough for landscapes and close enough for portraits and performs very well in both situations. And it does makro. I use this lense as a walk around lens, seeing it covers basically all my everyday shooting needs.
One little caveat, however, is, that it is a wee bit noisy when focusing and dosen't focus as fast as Nikons own lenses, but it is a small price to pay for the good qualities of this lens.
A very good piece of glass for the money. Highly recommendable.
Great lens at a great price February 21, 2008
Philip Loria
10 out of 10 found this review helpful
I was suprised at how sharp this lens is at 2.8 and all other stops. It can focus inches away and while not a dedicated macro lens has good macro ability at 1:2.3. Auto focus is quick and accurate on my D40 and D300. The only catch is that you must switch the switch from AF to MF if you wish to use manual focus.
Probably the best bang for the buck of all the lenses I own.
PL
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