Tamron [A17NII] AF70-300mm F/4-5.6 Di LD Macro compatible with Nikon 

• The popular Tamron AF 70-300mm F/4.5-5.6 Di LD Macro features a built in motor to ensure fast accurate focusing
• This telephoto zoom will crop in tight or bring distant subjects in close
• There is also an incredible macro mode for photographing small objects up close giving a magnification ratio of 1:2
• This phenomenal lens comes with a 6 year warranty
• Lens hood included for maximum glare protection and increased contrast

Product Description

Designed for optimum handling ease and portability, the Tamron 70-300mm f/4-5.6 Di LD Macro 1:2 AF Lens is ideal for handheld shooting with full-frame and APS-C format SLRs. Its unsurpassed close-focusing ability makes it perfect for nature and portrait photography. Picture takers eager to bring distant sports or wildlife subjects closer, as well as bringing tiny, close range subjects into clear focus will appreciate the standout macro function, available at focal lengths between 180 and 300mm, with a maximum magnification ratio of 1:2 (one half life-size). This version also features a built-in autofocus motor for use with all Nikon DSLRs.

Low Dispersion (LD) Glass for Greater Lens Sharpness 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 low dispersion 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.)" 

Macro Effect of 1:2 in Telephoto Zoom Range

Flipping a macro switch in the focal length range of 180mm to 300mm allows entry into the macro range, for photography as close as 1.6' (95cm) from the subject. In the macro range, one can take advantage of the telephoto effect and a maximum magnification ratio up to 1:2. In addition, since the focal length in the macro range spans from 180mm to 300mm, zooming can also be used to adjust composition.

Technical Specifications:

• Weight: 435g
• Dimension: 25.4x25.4x25.4cm
• Optical Zoom: 2X
• Speaker Diameter: 62mm
• Mount type: Nikon F
• Focal Length: 70 – 300mm
• Maximum Aperture: f/4.0 - 5.6
• Format: Nikon FX/35mm Film, Nikon DX
• Lens Construction: 13 elements in 9 groups
• Angle of View: 34 to 8 degrees
• Auto Focus: Yes
• Filter Size: 62mm
• Closest Focusing Distance: 4.92ft
• Features:

  Compact Construction: This lens comprises 13 elements in 9 groups. The compact construction and ultra light weight of this lens makes it highly portable. You can easily carry this lens to your outdoor shoots and take wonderful images all the time. This lens captures bright images by reducing ghosting or flares caused by reflections. As this lens features a very long telephoto zoom to cover up to 465mm equivalent, it is compatible with the DSLR and film cameras.

  Macro Switchover Mechanism: The advanced Macro Switchover Mechanism of this Tamron lens lets you capture magnificent macro images. Featuring a magnification ratio of up to 1:2 in the focal length range of 180mm to 300mm, the macro mode lets you click images of micro-organisms such as flowers and insects.

  Therefore, shop this Tamron lens online at your earliest and experience dynamic photography with it. It will be shipped with utmost care so that the lens remains protected from any sort of damage during its delivery. The quality of this product is beyond worry as Tamron assures you of that.