Tamron Sp 150-600mm F/5-6.3 Di VC USD G2 For Nikon

The pursuit of functional beauty is applied to every aspect of the new ultra-telephoto zoom

This design philosophy in pursuit of functional beauty with a “human touch” is applied even to minute details for the SP 150-600mm G2 ultra-telephoto lens as well.

This second-generation 150-600mm provides new levels of comfort and ergonomics. The curved surfaces of the front portion of the lens fit comfortably in the palm of a photographer’s hand. The focus and zoom rings feature optimal groove width, the focus limiter switch allows for easy operation, and the grip is compatible with the Arca-Swiss type quick release system. The smoothly curved lens hood is designed for easy attachment and removal from the lens barrel. While using metal as the exterior material and adding new functions such as the FLEX ZOOM LOCK mechanism, the SP 150-600mm G2 achieves a size and weight making comfortable handheld shooting possible, with a slim and stylish appearance design.

eBAND Coating

Advanced lens coating produces even sharper, crisper images

This new coating technique developed by Tamron deploys a nano-structured* layer with dimensions smaller than the wavelengths of visible rays of light. Called eBAND (extended Bandwidth & ANgular-Dependency), its ultra-low refractive index, combined with the sophisticated multiple-layer coatings underneath, yields significant anti-reflection properties, absolutely minimising flare and ghosting to deliver sharp, crisp images.

Broad-Band Anti-Reflective coating

Cleaner, crisper images without flare or ghosting

For the precision required by digital sensors, Tamron’s BBAR (Broad-Band Anti Reflection) multilayer coatings reduce reflection into the lens elements, enhancing light transmission on both long and short wavelengths. Internal surface coatings are also applied on cemented surfaces of lens elements to make images sharper with better colour balance and reproduction.

Low Dispersion

Sharpens edges by reducing ‘colour fringing’

Chromatic aberration occurs when a lens element refracts different wavelengths of a ray of light – its rainbow colours – at very slightly different angles. This results in the ‘colour fringing’ that reduces the sharpness of an image. LD elements are made from special glass materials with extremely low dispersion indices (i.e. the refraction of a ray of light into rainbow colours is extremely narrow). Thus they effectively compensate for chromatic aberration at the centre of the field (on axis), a particular problem at long focal lengths (the telephoto end of the zoom range), and for lateral chromatic aberration (toward the edges of the field) that often occurs at short (wideangle) focal lengths.

Ultrasonic Silent Drive

‘Travelling waves’ generate a fast, smooth AF movement

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 is a material 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 produce simple motion into energy known as ‘deflective travelling waves’, which move around the circumference of the ring. The friction between these deflective travelling waves created on the metallic surface of the stator and the surface of the rotor produces force, causing the rotor to rotate. Attached to the rotor is the focusing lens, which is given a fast, smooth autofocus movement.

Super Performance series

Performance takes priority for superb image quality

This line of ultra-high-performance lenses is designed and manufactured to the exacting specifications demanded by professionals and others who require the highest possible image quality. The foremost priority is achieving superior performance parameters – high design standards take priority over cost constraints. As a result, Tamron SP lenses feature innovative designs that have established an enviable reputation for excellence amongst demanding photographers.

Broad-Band Anti-Reflective coating

Cleaner, crisper images without flare or ghosting

For the precision required by digital sensors, Tamron’s BBAR (Broad-Band Anti Reflection) multilayer coatings reduce reflection into the lens elements, enhancing light transmission on both long and short wavelengths. Internal surface coatings are also applied on cemented surfaces of lens elements to make images sharper with better colour balance and reproduction.

Low Dispersion

Sharpens edges by reducing ‘colour fringing’

Chromatic aberration occurs when a lens element refracts different wavelengths of a ray of light – its rainbow colours – at very slightly different angles. This results in the ‘colour fringing’ that reduces the sharpness of an image. LD elements are made from special glass materials with extremely low dispersion indices (i.e. the refraction of a ray of light into rainbow colours is extremely narrow). Thus they effectively compensate for chromatic aberration at the centre of the field (on axis), a particular problem at long focal lengths (the telephoto end of the zoom range), and for lateral chromatic aberration (toward the edges of the field) that often occurs at short (wideangle) focal lengths.

Although costly, LD glass materials result in clear, vivid image quality.

Vibration Compensation

Compensates for camera blur on long shutter speeds – for sharp images in much less light

Tamron’s unique VC mechanism uses a proprietary actuator and algorithms to deliver an extremely stable viewfinder image with excellent tracking. The mechanism employs a tri-axial system in which three driving coils move internal optical components within the VC lens electromagnetically, based on signals originating from three steel ball bearings. The VC lens elements are held in place only by contact with the steel balls, achieving smooth movement with minimal friction. The simplicity of this mechanical structure is also one of the secrets of Tamron’s compact lens sizes.