Jumat, 10 Juni 2011

Tamron AF 28-300mm f/3.5-6.3 XR Di LD VC (Vibration Compensation) Aspherical (IF) Macro Zoom Lens with Built in Motor for Nikon Digital SLR Cameras

Camera shake can ruin your photos, particularly at telephoto or in low light. This new 28-300mm lens features Tamron s state-of-the-art Vibration Compensation mechanism which has blur stopping power with no annoying motion delay in your viewfinder. This remarkably compact lens, which weights under a pound and is less than 4 long, offers tremendous telephoto range. It also features a 1:3 macro magnification ratio, a zoom-lock mechanism for enhanced portability and a six-year Tamron warranty. It includes a flower shaped lens hood and accepts 67mm filters.

Color: Black Brand: Tamron Model: AF020N-700 Released on: 2008-01-15 Built in motor for use on the new Nikon Cameras, Zoom lock Includes lens hood 6 year Tamron Warranty 67mm filter size

Unleash the picture power of your digital SLR with this remarkable new compact, lightweight all-in-one zoom lens. Covering an impressive 10.7X, wide-to-longtelephotozoom range on both full-frame and APS-C format digital SLRs it gets down to an incredible 0.49m (19.3") at 300mm in Macro mode for dramatic framefilling close-ups. Zoom in for a macro shot And to optimize its outstanding real-world image quality we’ve built in our new high-tech, state-of-the-art VC (Vibration Compensation) system. The cutting edge 18-element and 13-group design of the 28-300mm VC lens incorporates XR (extra refractive-index ), LD ( low dispersion) and AD (anomalous dispersion ) glass as well as hybrid and GM (glass molded) aspherical elements to deliver exquisite sharpness and color correction over its extended range. The esteemed Di ( Digitally Integrated ) designation is your assurance of optimum digital and analog imaging performance. Capturing razor sharp handheld images just got AF28-300mm F/3.5-6.3 XR Di VC Features Di II Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm. Vibration Compensation (VC) Camera shake can ruin your photos, particularly at telephoto or in low light. Tamron's state-of-the-art Vibration Compensation mechanism incorporated into the award-winning 28-300mm zoom gives you blur-free hand-held images for incredible results! Finally, the technology you need in the lens you want. VC delivers blur free - handheld images for incredible results VC mechanism employs a three-coil system Lens element compensates for vibration using 3-steel balls (making movement quiet & smooth) Exceptional images at slower shutter speeds – reduces the need for a tripod Bring out contrast to motion & stillness Eliminate the need to shoot with a Flash VC Off - VC On Low Dispersion (LD) Low dispersion (LD) glass elements in a lens help reduce chromatic aberration; the tendency of light of different colors to come to different points of focus at the image plane. Chromatic aberration reduces the sharpness of an image, but glass with an extremely lowdispersion index, has less of a tendency to separate (defract) a ray of light into a rainbow of colors. This characteristic allows the lens designer to effectively compensate for chromatic aberration at the center of the field (on axis), a particular problem at long focal lengths (the telephoto end of the zoom range), and for lateral chromatic aberration (towards the edges of the field) that often occurs at short focal lengths (the wide-angle end of the zoom range.) Low Dispersion (LD) Glass for Greater Lens Sharpness Extra Refractive Index Glass (XR) Extra Refractive Index (XR) glass can bend light rays at steeper angles, thereby decreasing the physical length of the lens while enhancing imaging performance by minimizing optical aberrations. This has allowed Tamron to develop a line of shorter, smaller-diameter, lighter lenses without sacrificing lens speed, and actually upgrading image quality compared to older designs. XR glass is costlier than conventional glass but it yields enhanced optical power distribution, making possible many of the outstanding and innovative lens designs that bear the XR designation. XR glass, with its superior light-bending power, makes it possible to design a short-barrel lens with the same light-gathering ability (aperture value) as a long-barrel lens—even with a smaller lens diameter. By using this principle Tamron has been able to shorten the length of the entire optical system and produce lighter, more compact lenses of the same speed, and also to provide greater zoom ranges in lenses that are much more convenient to carry by hand. Special glass for better performance and more compact lens designs Aspherical Elements (ASL) Provide the Ultimate in Image Quality and Compactness) Tamron uses several hybrid aspherical lens elements in many lenses bearing the Aspherical designation. These innovative optics allow us to achieve the ultimate in image quality, and at the same time produce lenses that offer remarkable zoom ranges in extraordinarily compact packages. By perfecting theses cutting-edge advances for series production, Tamron has advanced the state of optical design, and virtually eliminated spherical aberration and image distortion from the high-power-zoom series.Through the effective application of Hybrid Aspherical Technology, one lens elemen tcan take the place of multiple elements without compromising performance. This is what allows us to produce remarkably compact long-range lenses that deliver a uniformly high level of image quality at all focal lengths and apertures. Achieve the ultimate in image quality with Asperical (ASL) lenses Internal Focus (IF) Internal focusing (IF) provides numerous practical benefits to photographers including a non-rotating front filter ring that facilitates the positioning of polarizing and graduated filters, and more predictable handling because the lens length does not change during focusing. Even more important, Tamron’s Internal Focusing (IF) system provides a much closer minimum focusing distance (MFD) throughout its entire focusing range. In addition, IF improves optical performance by minimizing illumination loss at the corners of the image field, and helps to suppress other aberrations that become more troublesome at different focusing positions.

Very helpful customer reviews 136 of 139 people found the following review helpful. Exceptional compact walk-around lens with a wide range at reasonable prices. By fugraw hands and I tested the Tamron 28-300mm VC zoom lens for about 2 months now. Here's an early review of my experience so far. Pros: Excellent optical quality (stronger at shorter focal length) Versatile multi-purpose walk around lens. Putting it on your camera without having to lug around extra lenses. Amazing 28-300 focal length equivalent to 44-480 on the 1.6 x crop sensor. Compact size and light weight. Vibration Compensation works very good zoom and macro shooting solid and well built quality rubber hand feels much better than most Canon lenses Reasonably priced compared to similar lenses included hood Center-pinch lens cap should be an industry standard. Additional peace of mind with standard 6 year warranty Disadvantages: wider angle would be nice on a 1.6x crop sensor. If you shoot many landscapes 44mm may not be enough in low light, indoor climate, which means, aperture F3.5-6.3, as I increase the ISO and use longer shutter speeds to shoot brighter. Occasionally, AF searches a bit in low light is not a big deal, but the lens creeps (extends with gravity) when lens lock and shows off the lens down. In conclusion, the Tamron AF 28-300mm VC lens a great choice when looking to keep a general tour of the lens to the camera. You can not beat the optical performance with such range from a relatively compact, lightweight and well built package, especially considering the price. 90 of 92 people found the following review helpful. Very nice lens By Stephen Kalman I replaced two Canon lenses (18-135 and 70-300) with this single lens, and I'm glad I did. Most of my pictures are hand held, on hikes or vacation, and I do not really wear a lot of lenses or change it in the box. Last year, I have walked on a glacier in Canada and cross the Sahara on horseback and is a great place to change lenses and there were many times I missed a shot I wanted because the right lens in the bag, no camera . This is small, lightweight, easy to use. I see no distortion of color or shape. I can get the same results handheld at shutter speeds using Tamron VC as I have with the Canon IS. I have a little problem, few, however. One is that the rotation of the catch is the direction opposite to the Canon lens. That took a little getting used to. Another is that the autofocus is a bit stronger. This could be a problem for places where silence is important. Third (and last), there is little difference in speed between 200 mm and 300 mm focal length. In other words, it is difficult to make accurate decisions at the upper end of range. (See zoomed detailed at the lower figures, that only with a wide range of this it is more pronounced than usual) Overall I am very happy with this lens and it recommends. 71 of 74 customers found this review helpful. How this goal by RonAnnArbor How this goal - an all-purpose carry-around lens with VC integrated optics and very good. not what I go to a general-to-lens to expect this kind - I'm consistently surprised by the IQ of the photos I take. With my previous Nikon kit - the 18-200 was one of my favorite targets, but IQ was still a little worse than I am devoted to my lenses ... Now with my Canon kit, I can clearly say that the Tamron 28-300 VC lens consistently gives me far better shots than the Nikon 18-200 ever in the same light conditions. The added zoom is a blessing and basically you can take your Canon camera, lens, and nothing else on most photo shoots, especially when traveling. I highly recommend this goal as a teacher walk-around lens, and I think you will find that the IQ is stunning - beyond what you imagine with the aim of this

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