This lens uses one LD (Low Dispersion) and one XLD (Extra Low Dispersion) element to counteract colour fringing that is caused by the refraction of light in traditional lens elements. The result is extremely low levels of chromatic aberration and contrast and sharpness that are class beating.

Multiple BBAR (Broad Band Anti Reflection) coatings have been employed to keep flare and ghosting to negligible levels and the inclusion of a flower shape hood makes sure that stray light is kept from entering the lens.

Ultrasonic Silent Drive Focus
First introduced in this lens, this technology uses ultrasonic wave interactions to propel the focus mechanism quickly and precisely to its desired point. The end result is ultra-fast focus even at long focal lengths, making this lens ideal for sports and wildlife photography. If you prefer manual focus this is attainable at any time without a switch, just by rotating the focus ring manually – courtesy of the Full Time Manual Focus feature. Filters are easily managed too thanks to fully internal focusing.

Also features 1:4 Macro magnification and full frame or APS-C compatibility.

Visit Tamron's interactive site for more information on focal length and depth of field

Includes a 5 year Manufacturer’s warranty

Specifications

• Lens Construction: 17 Elements in 12 Groups
• Minimum Aperture: f32-45
• Angle of View: 34° 21’ – 8° 15’
• Close Focusing: 150cm (max 1:4 magnification at 300mm focal length)
• Aperture Blades: 9
• Filter Diameter: 62mm
• Dimensions (Diameter x Length): Approx 81mm x 142mm
• Weight: 765g approx

• Bag/Case size (not supplied): Lens Case 2S
• Weight (g): 765g
• Dimensions for Lenses: 81.5 x 142.7mm
• Type: Zoom, Telephoto
• Lens Fitting: Sony A-mount for DSLR
• Filter - Size: 62mm