Sigma AF 28mm F1.8 EX DG Aspherical DF Macro Specifications

Product ID:

#440

Compatibility:

analog*/digital*

Diagonal Angle of View:

75.4°

Maximum Magnification:

1:2.9

Minimum Aperture:

F22

Number of Aperture Blades:

9

Iris Pattern:

 

Minimum Distance:

20cm

Filter Thread:

77mm

Maximum Diameter:

83.6mm

Length:

80mm

Weight:

480g

Focus Type:

straight helicoid focus mechanism with floating elements; features Dual Focus (AF w. rotating or non-rotating focus ring, MF using focus ring, focus lock (no AF nor MF))

Full Focus Throw:

90°

Lens Hood:

LH 825-03 (bayonet mounted, flower shaped)

Produced:

2001

Tests:

PopPhoto Measurements:

26.99mm F1.77

Additional Information:

The lens is reported for IR capability as well as incapability (IR Forum).