My hands on review with the Ultra wide angle lens from Tokina. There are two versions the Mk I and II optically they use the same formula. The lens is relatively affordable for those looking for an ultra wide optic and the faster constant F2.8 aperture makes it a viable option for low light hand held photography.
For 1.5x crop sensors the lens give an equivalent full frame field of view of: 16.5mm - 24mm. 1.6x crop sensors: 17.6mm - 25.6mm
Details from the maker:
Specifications
Focal Length 11 - 16mm
Maximum Aperture f/2.8
Minimum Aperture f/22
Construction E/G 13 Elements in 11 Groups
Coatings Multi-layer
Angle of View 104 - 84°
Minimum Focus Distance 1.0 ft (0.3 m)
Macro Ratio 1:11.6
Focusing Mode Internal Focusing
Zoom Mode Rotary Zoon
Aperture Blades 9
Filter Size 77mm
Lens Length 3.5 in (89.2mm)
Weight 1.2 lbs (560g)
Accessories Flower design Bayonet lens hood (BH77A)
Lens Hood BH-77A
Mounts Canon APS-C, Nikon APS-C, Sony Alpha APS-C
