Tokina 12-28mm F4.0 SD DX AT-X AF PRO Specifications

Compatibility:

APS-C only

Diagonal Angle of View:

99.4° - 54.7°

Maximum Magnification:

1:4.9

Minimum Aperture:

F22

Number of Aperture Blades:

9

Iris Pattern:

polygonal

Minimum Distance:

25cm

Filter Thread:

77mm

Maximum Diameter:

84mm

Length:

90.2mm (constant)

Weight:

600g

Focus Type:

Silent Drive-Module with GMR sensor, Focus Clutch, internal focus mechanism

Full Focus Throw:

80°

Zoom Type:

rotary, internal zoom mechanism (no extension during zoom)

Lens Hood:

bayonet mounted, flower shaped

Produced:

2013

Tests:

DxO Labs; Popular Photography

PopPhoto Measurements:

12.39-27.99mm F3.42-4.54 at 1:9.68-4.78

Additional Information:

According to the AT-X 242 AF's product description all Tokina AT-X zoom lenses are parfocal.