Tokina
AT-X 70-200mm f/4 PRO FX VCM-S Lens for Nikon
Telephoto Zoom Lens
The Nikon F-mount AT-X 70-200mm f/4 PRO FX VCM-S from Tokina is a telephoto zoom lens designed for both FX and DX sensors and featuring a constant f/4 maximum aperture for consistent performance throughout the zoom range. When used with a DX-format sensor the lens offers a 35mm equivalent focal length range of 105-300mm.
The optical design uses three Super-Low dispersion elements to reduce chromatic aberrations throughout the zoom range for a high degree of sharpness and clarity. Multi-layered coatings have also been applied to lens surfaces to suppress lens flare and ghosting for greater contrast and true colour. A nine-blade diaphragm contributes to a smooth out-of-focus quality, benefitting the use of selective focus and shallow depth of field techniques.
A VCM (Vibration Correction Module) image stabilisation system has been incorporated within the lens' design to minimise the appearance of camera shake by up to three stops. This is beneficial when working in low lighting conditions and with longer focal lengths. A ring-type ultrasonic AF motor is also used to provide fast, precise, and quiet focusing performance that also permits manual fine tuning of the focus position. An internal focusing mechanism maintains the overall lens length during use.