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| Sigma 120-400mm f/4.5-5.6 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras | 
 enlarge | List Price: $849.99
Buy New: $755.00
You Save: $94.99 (11%)
Buy New from $755.00
Avg. Customer Rating:  (based on 4 reviews)
Category: Photography
Publisher: Sigma Corporation
Studio: Sigma Corporation
Brand: Sigma
Label: Sigma Corporation
Media: Electronics
Fragile: 0
Batteries Included: 0
Maximum Focal Length: 400
Minimum Focal Length: 120
Shipping Weight (lbs): 5.7
Dimensions (in): 11 x 7.4 x 6.9
MPN: 728-306
Model: 728-306
UPC: 085126728557
EAN: 0085126728557
ASIN: B001542X5K
Availability: Usually ships in 1-2 business days
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| Features:
| • | Three SLD glass elements and a rear focus system provide optimum image quality throughout the entire zoom range | | • | Minimum focusing distance of 150cm (59.1) makes it useful for close-up photography | | • | Dimensions - 19.7 x 19.7 x 19.7 | | • | Weight - 5.4 pounds |
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Product Description
The Sigma 120-400mm Zoom Lens incorporates Sigma's original OS (Optical Stabilizer) function. It offers the use of shutter speeds approximately 4 stops slower. Three SLD (Special Low Dispersion) glass elements provide excellent correction for chromatic aberration. This lens is equipped with a rear focus system that minimizes the fluctuation of aberration caused by focusing. It provides optimum image quality throughout the entire zoom range. The super multi-layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. The minimum focusing distance of 150cm (59.1") throughout the entire zoom range and maximum magnification of 1:4.2 make it useful for close-up photography. This lens incorporates a Hyper Sonic Motor (HSM), which ensures a quiet and high-speed AF as well as full-time manual focusing capability. The addition of the optical 1.4x EXDG APO or 2x EX DG APO Tele Converters produce a 168-560mm F6.3-8 MF ultra-telephoto zoom lens or a 240-800mm F9-11 MF ultra-telephoto zoom lens respectively.
Amazon.com Product Description
The Sigma 120-400mm telephoto zoom lens covers a telephoto range of up to 400mm, letting you bring almost any subject close for short-perspective shots. The lens employs Sigma's original Optical Stabilizer (OS) function, which gives you access to shutter speeds approximately four stops slower without blurring the image. As a result, you can capture low-light, long-distance shots such as football plays, wildlife profiles, and landscape scenes without using a tripod for each photo. In addition, the lens incorporates a Hyper Sonic Motor (HSM) for quick, high-speed autofocusing, along with a rear focus system that guarantees optimum image quality throughout the entire zoom range. And photographers will love the three special low dispersion (SLD) glass elements, which correct for chromatic aberration, and the super multilayer lens coating, which reduces flare and ghosting. Other details include a minimum focusing distance of 59.1 inches, a maximum magnification ratio of 1:4.2, and support for optical 1.4x EX DG APO and 2x EX DG APO tele converters. Specifications
- Focal length: 120-400mm
- Maximum aperture: f/4.5-5.6
- Lens construction: 21 elements in 15 groups
- Angle of view: 20.4 to 6.2 degrees
- Number of diaphragm blades: 9
- Minimum aperture: f/22
- Minimum focusing distance: 59.1 inches
- Maximum magnification: 1:4.2
- Filter size: 77mm
- Hood type: Bayonet
- Mount: Nikon
- Dimensions: 3.6 inches in diameter and 8 inches long
- Weight: 61.7 ounces
- Warranty: 1 year
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| Customer Reviews:
 Wonderful Lens November 16, 2008
1 out of 1 found this review helpful
I'm a professional photographer[...] and until now, have never owned anything but Canon or Nikon lenses. For years I specialized in sports photography and the lenses I most often used were a 400 f:2.8 and a 600 f:4. I moved on to other fields of specialty and decided I didn't want to lug around that kind of weight and got rid of the big glass. Now, several years later, I decided I needed a long lens again, but in a decidedly smaller package. After trying an unnamed top manufacturer's 80~400 lens and being unhappy with the quality of the image, I dared to try Sigma's new 120~400. I ran the lens through the ringer and tested it under every situation I could think of and through it all, it has performed flawlessly! In fact, I was ready to accept a little less sharpness, so when I evaluated my results, I was thrilled. I highly recommend this lens and I have the utmost confidence in this beautiful package of glass.
Great lens October 21, 2008
I am very happy with the purchase of this Sigma. Before, I also purchased the Macro 105 mm (also from Sigma) and the great quality of pictures that my wife are getting (mostly of insects) convince me to repeat the business with AMAZON. This 400 mm, a bit heavy to use without tripod at the beginning, became rapidly a wonderful tool once you get use to it. We are mostly fascinated with the fast AF it has, and could easily occurred that, instead of getting a nice sparrow hawk flying, you get a very sharp tree suddenly interposed between your camera and the bird at the time you was shooting. In any case it gave us lots of fun. We, as ornithologists, recommend this product to anybody without any negative observation.
 Another Sigma with calibration issues September 13, 2008
6 out of 6 found this review helpful
I bought this lens after returning a 150-500 for back and front focusing issues on a Nikon D700. Well, the 120-400 suffered from the same problems. My copy had bad back focus at 400mm. Using the D700's AF Tune function I could compensate to get it to focus correctly at 400mm, but that introduced severe front focus issues from 120-250mm. Overall, I could get the 150-300mm range to focus well if I gave up on the 120mm and 400mm ends.
As with the 150-500 order, Amazon's shipping department did a totally inadequate job of padding the shipping box. There wasn't enough airbags in the box to prevent the Sigma box from sliding around let alone protect it on all sides. In all, my two Sigma lens orders received the same level of packaging attention as the book and DVD orders I've received over the years. This is a very bad situation for anyone interested in purchase precision optics from Amazon.
Use a tripod. July 5, 2008
11 out of 11 found this review helpful
This is one big hunk o' lens (5 lbs) that benefits greatly from the use of a sturdy tripod and a remote shuter release. The photos I took were acceptably sharp on a tripod, but it takes a steady hand, even with the OS, to get similar results hand-held. I'm not yet convinced that the OS, especially at the 400mm setting, actually gives you a 3-4 shutter speed advantage. Maybe this will improve as my technique improves. I was also suprised to read in the isntruction sheet that you must wait approximately 1 second after pressing the shutter release half-way to get a stable image. Is this common to all image-stabilization lenses? I was also somewhat confused by the OS instructions which call for OS 1 for camera shake, and OS 2 for subject travel accross the horizontal plane. Since the instructions also warn against using OS while the camera is on a tripod, this seems inconsistent with the stated use of OS 2. The HSM autofocus is very quiet, but sometimes has difficulty locking in on the subject. This is probably not much different from similar lenses of this type (I've read identical complaints about the Nikon lens). However; the all-the-time manual focus over-ride comes in very handy in those cases where the auto focus system is having a hard time. Having had the lens for just a few days I think that, for the money, it will fill my occasional need for a long telephoto lens.
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