The new Tamron telephoto lens offers a maximum magnification ratio of 1:3.1, which the company says is the highest in its class. It also boasts the shortest-in-class (among 70-200mm F/4 class interchangeable lenses for full-frame DSLR cameras) MOD of 0.95m.
It boasts an optical construction of 20 elements in 14 groups, and uses three Low Dispersion lens elements to cut down on chromatic aberrations.
The Tamron 70-210mm f/4 Dual MPU system includes dual MPUs dedicated to VC processing and lens system control. Both MPUs have a Digital Signal Processing block that provides high-speed digital signal processing, which Tamron says boosts its computing power.
Its AF system employs an Ultrasonic Silent Drive ring-type motor, with manual focus override. The Tamron 70-210mm f/4 also promises stabilisation down to 4 stops, enabling handheld shooting in low light with slow shutter speeds, Tamron says.
The Tamron 70-210mm f/4 price tag will be £699 with a release date of April 2018.
|Focal Length||: 70 ‐ 210mm|
|Maximum Aperture||: F/4|
|Angle of View (diagonal)||: 34°21' -11°46' (for full-frame format) 23°01' -7°46 (for APS-C format)|
|Optical Construction||: 20 elements in 14 groups|
|Minimum Object Distance||: 0.95m (37.4 in)|
|Maximum Magnification Ratio||: 1:3.1|
|Filter Size||: φ67mm|
|Maximum Diameter||: φ76mm|
|Length*||: for Canon 176.5mm. For Nikon 174mm|
|Weight**||: for Canon 860g For Nikon 850g|
|Aperture Blades||: 9 (circular diaphragm)|
|Minimum Aperture||: F/4-F/32|
|Image Stabilization Performance||: 4 stops (CIPA Standards Compliant)|
|: For Canon : EOS-5D MKIII is used / For Nikon : D810 is used|
|Standard Accessories||: Lens hood, Lens caps|
|Compatible Mounts||: Canon, Nikon|