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In the pursuit to achieve the most outstanding image resolution in the 70-300mm class, Tamron’s Anniversary lens - the SP AF70-300mm F4-5.6 Di VC USD - utilises an advanced optical design that features a LD (Low Dispersion) and an XLD (Extra Low Dispersion) lens element made from specialised materials that prevent chromatic aberration. As a result, the SP AF70-300mm F4-5.6 Di VC USD boasts sharp contrast and great descriptive performance.
In addition, it is the first Tamron lens to include a USD (Ultrasonic Silent Drive), Tamron’s very own ultrasonic auto-focus drive mechanism. This USD mechanism delivers fast focusing, making it a perfect telephoto zoom choice for photographing sports, racing, or other fast-moving subjects. The lens also boasts Tamron’s proprietary VC (Vibration Compensation) image stabilisation to assist in hand-held photography, not only at long focal length ranges where blurring is common, but also under low-lit conditions, dramatically enhancing photographic freedom.This combination of best in class image resolution, Ultrasonic Silent Drive and Vibration Compensation is a new achievement of Tamron technology, culminating in the production of a premium 70-300mm telephoto zoom lens.
A new optical system optimised for digital SLRs achieves top resolution in the 70-300mm class with specialised glass elements. The advanced optical design employs a sophisticated XLD (Extra Low Dispersion) lens element made from a special high-grade glass that has dispersive properties (i.e. where refraction causes the dispersion of white light into spectral hues) even lower than standard LD lenses. The dispersive properties of the XLD lens are similar to those of fluorite; in combination with the LD elements, these make for an optimal optical design that delivers best-in-class resolution with advanced axial chromatic and magnification aberration correction – major inhibitors of image quality enhancement. The result is a lens that delivers sharp contrast and better descriptive performance throughout the entire zoom range. The lens also looks good as Tamron has adopted a streamlined silhouette to ensure that the lens fits in with a variety of SLR cameras. The subtle texture of the paint gives a well-crafted finish to the exterior.
The SP AF70-300mm F/4-5.6 Di VC USD employs Tamron’s excellent image stabilisation mechanism – the VC (Vibration Compensation) seen in both the AF18-270mm Di II VC (Model B003) and SP AF17-50mm F/2.8 XR Di II VC (Model B005). With VC, the photographer has the freedom to shoot at a shutter speed that is an extra four stops slower without having to worry about image blurring. This makes handheld capture of evening, night and interior shots much more spontaneous, as a sharp image can be obtained more easily without having to mount the camera on a tripod.
Autofocus has many benefits but sometimes the photographer needs the control of manual focus. Full-time manual offers just that: the crossover from autofocus to manual focus by simply adjusting the focus ring, allowing the photographer to make adjustments on the fly. This feature helps the lens produce impressive results even in telephoto situations where the depth of field is shallow.
With a full-frame digital or 35mm SLR, portrait and medium telephoto shots can be achieved on the wider 70mm end of the range and spectacular telephoto shots at the longer 300mm. When using an APS-C sensor camera the angle of view narrows, giving it the equivalent range of 109-465mm* for bold ultra-telephoto shots. And with its maximum magnification ratio 1:4, the lens can be used to explore the realm of semi-macro photography.
Digital photography requires extreme precision, which is why Tamron incorporates new BBAR (Broad-Band Anti Reflection) multilayer coatings that reduce reflection into the lens elements. This ensures excellent performance in all photographic conditions and enhances light transmission on both long and short wavelengths. Also, Tamron applies internal surface coatings on cemented surfaces of lens elements to make images sharper with better colour balance and reproduction.
Included as a standard accessory, the flower-shaped hood matches the rectangular shape of the image sensor to most effectively block the interference of superfluous light rays entering from outside the borders of the image area, helping to ensure sharp, clear, flare-free images with crisp detail in the shadow areas.
Tamron SP (Super Performance) series is a line of ultra-high-performance lenses designed and manufactured to the exacting specifications demanded by professionals and others who require the highest possible image quality. In creating SP lenses Tamron’s optical designers put their foremost priority on achieving superior performance parameters—they are all designed to a higher standard with little regard for cost constraints. As a result, Tamron lenses bearing the SP designation feature impressive and innovative designs that have established an enviable reputation for excellence among those knowledgeable photographers that demand the very best.
Internal focusing provides numerous practical benefits to photographers, including a non-rotating front filter ring that facilitates the positioning of polarising and graduated filters, and more predictable handling as 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 minimising illumination loss at the corners of the image field, and helps to suppress other aberrations that become more troublesome at different focusing positions.
Tamron’s USD works with the high-frequency ultrasonic vibrations that are produced by a ring called a ‘stator’. Energy from the vibrations is used to rotate an attached metallic ring known as the ‘rotor’. Piezoelectric ceramic, an element that produces ultrasonic vibrations when voltage of a specific frequency is applied is arranged in a ring formation on the stator. This electrode configuration of piezoelectric ceramic causes two ultrasonic vibrations to occur in the stator.
By effectively combining these two ultrasonic vibrations, it is possible to convert the energy from the vibrations that produced simple motion into energy known as ‘deflective travelling waves’, which then moves around the circumference (rotation direction) of the ring. With the USD, the friction between these deflective travelling waves created on the metallic surface of the stator and the surface of the rotor produce force, causing the rotor to rotate. The focusing ring lens, which is linked to the rotor, is thus moved, creating a fast and smooth auto-focus drive.
A friend recommended this lens to me and I am very happy with it. It's easy to handle and the zoom is brilliant. I wanted it mainly for wildlife shooting and it works. Read morePublished 17 days ago by Wendy
For the money, absolutely great value. Not the greatest sharpness at full stretch 300mm.and beyond, but capable of very good images generally. Read morePublished 23 days ago by Aerialman
Great lense, bought to replace nikon 55-300mm, focus is very quick and quiet, only issue is is sometimes doesn't quite get the focus, but you can adjust that manually even when in... Read morePublished 27 days ago by Daniel Hobson
Absolutley impressed with the lens. Have clicked some stunning pics with this lens. The VC feature outshines the VRs and ISs of other lens, I had the experience of comparing with... Read morePublished 1 month ago by Pranay Pariyar
Good product works as its said it would good takes great picturesPublished 1 month ago by Kevin Tettmar
Nice lens build quality is good Vibration control works well good lens for the price and will fit a full frame body should I upgrade to full framePublished 1 month ago by Richard W Gudge
After only using the lens for around a couple of hours it's very easy to tell why this lens is so highly rated.. Read morePublished 2 months ago by Luke Barnard