Jumat, 27 Mei 2011

Sigma 28-300mm f/3.5-6.3 DG Macro Aspherical Lens for Nikon AFD Cameras

This digitally optimized zoom lens provides a high zoom magnification of 10.7x. The new lens coating reduces flare and ghosting, a common problem with digital cameras and also creates an optimum color balance. The 10.7x zoom ratio covers a wide range of focal length from wide angle to tele-photo making this a highly versatile lens ideally suited for many types of photography. This lens features two Special Low Dispersion (SLD) glass elements and four Aspherical Lenses, to produce a high level of optical performance. Aspherical lenses provide excellent correction for all types of aberration while making a very compact construction possible. The 28-300mm F3.5-6.3 DG MACRO lens has a minimum focusing distance of 50cm at all focal lengths and is equipped with a macro mechanism for close-up photography at 300mm telephoto, allowing a reproduction ratio of 1:3. The zoom lock switch eliminates "zoom creep" during transportation, a convenient addition when traveling. The inner focusing system gives the advantage of a non-rotating front lens assembly, which is of great benefit when using polarizing filter and the matched Petal-shaped lens hood supplied.

Brand: Sigma Model: B0009XQPJI Dimensions: 4.10" h x 4.30" w x 6.00" l, .22 pounds Compact high performance zoom lens with a 10.7x high zoom ratio, 28 to 300-millimeter focal length Special low dispersion glass and aspherical lenses produce high level of optical performance 19.7-inch minimum focusing distance with macro mechanism for close-up photography at full zoom Zoom lock device prevents zoom setting from being changed inadvertently Designed for Nikon digital SLR cameras

Manufacturer Description The Sigma 28-300mm f3.5-6.3 Macro lens covers all the focal lengths from 28mm wide angle to 300mm telephoto with 10.7:1 high zoom ratio as well as macro capability. The 28-300mm f3.5-6.3 Macro packs a lot of performance in a compact package with ultra-compact dimensions that make this lens the ultimate traveling companion length. Two-piece Special Low Dispersion (SLD) glass elements and four-piece Aspherical Lenses, produce a high level of optical performance. The 28-300mm f3.5-6.3 Macro lens feature two-piece Special Low Dispersion SLD glass elements and four-piece aspherical lenses to produce a high level of optical performance. Aspherical lenses provide excellent correction for all types of aberration while making a very compact construction possible. Macro photography with a 1:3 maximum photography ratio The 28-300mm f3.5-6.3 Macro lens has a minimum focusing distance of 19.7 inches (50 centimeters) at all focal lengths and is equipped with a macro mechanism for close-up photography at 300-millimeter telephoto, with a reproduction ratio of 1:3. Inner Focus System This design allows for stability and compactness in design as changes in focus are made in an internal lens grouping. This also gives the advantage of a non rotating front lens assembly which is of great benefit when using polarizing filter and Petal-type hood. The "Zoom Lock" device prevents the zoom setting from being changed inadvertently. The 28-300mm f3.5-6.3 Macro lens is equipped with a zoom lock to prevent the lens from creeping due to its own weight, and to offer protection whilst the lens is being carried. DG Lens These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for digital SLR cameras whilst retaining suitability for traditional 35mm SLRs.

Most useful reviews 44 of 45 people found the following review helpful. Useful lens of J. Trottier That's what you expect for a lens in this price class. It is a perfect everyday lens to photograph very well outdoor events where appropriate actions near and far. It is made of lightweight plastic, it is easy to carry, but I do not want to drag it out - especially if extended to 300mm. All in all I am very happy with my purchase. Focus is slower than my D50's kit lens, and it is noisy but not annoying. The only odd feature is manual focus, internal gears, so you do not solve the feeling of the gears whirring when you turn the focus ring, it feels a little rough. Nikon model of this lens has no manual focus switch on the lens, use the camera button. A bonus with this lens is that it's good for macro photography. I was able to take clear pictures of flowers up close with a few backgrouds blurred completely. The lens has a lot of light, but 300mm is not very practical in so it is ideal for outdoor activities daytime photos with hot shoe flash lens performs very well indoors. The zoom action is a bit fast for my taste. Only a half turn in the barrel and go 28-300! You have a light touch at just the right focal length to get. I bought this lens instead of the Nikon 70-300 G 28-300 is a more useful range, but you sacrifice speed (6.3 instead of 5.4 maximum aperture of 300 mm). Sigma is lighter and at least half an inch shorter than the Nikon at the minimum focal length. Nikon zoom was smoother and faster focusing. 49 of 52 people found the following review helpful. I love this lens, by Ronan arbor I want this lens - even though I am not using as much as I did for a while. My Nikon 18-200VR has replaced the usefulness of this lens, especially since upgrading to a D200 with 10 megapixels, you can zoom up to 200 points and then washed. But it is a solid lens that has a nice size and weight, and focal length is great No problems noted in both nodes of 28 or 300, but Sharper Image is between 100 and 200 Light corner thinning to 300, but similar to the Nikkor 70-300, so I can not really complain. A good goal for a great price. This has not caught on with users, as Nikon seems to have gone over like wildfire with the audience Canon. Recommended. 14 of 14 people found this review helpful. I like the Sigma 28-300 Macro Digital Photographers, I had the lens for about a year old was the EOS body, not a problem with the interface between Canon or Sigma, worked fine. I've heard about some incompatibilities between Sigma and Canon, but it did not happen for me. Recently bought the new Canon EOS Elan 7NE, Sigma works well with this body also. Optically, yes, there is some distortion at some focal lengths, but nothing really terrible, the color is excellent, love up almost anywhere in the goal. Critics of this range of lenses Never discuss what it really is like having a camera bag full of purpose and are always ready for anything, which is a huge plus, and he does what he has to do quite well, so if planning the re-shooting for National Geographic, this may not be the goal for you, but if you're a boy or a girl who loves photography, buy, you can t go wrong. View all 87 comments ....

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