Sigma AF 28-70mm F2.8 EX Aspherical DF Specifications

Product ID:

#545

Compatibility:

analog/digital

Diagonal Angle of View:

75.4° - 34.3°

Maximum Magnification:

1:4.2

Minimum Aperture:

F32

Number of Aperture Blades:

Iris Pattern:

Minimum Distance:

40cm

Filter Thread:

77mm

Maximum Diameter:

83.6mm

Length:

101.2mm (128.6mm at full zoom extension)

Weight:

645g

Focus Type:

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

Full Focus Throw:

80°

Zoom Type:

rotary

Lens Hood:

LH 825-02 "Perfect Hood" (bayonet mounted, flower shaped)

Produced:

2000 - 2003

Tests:

PopPhoto Measurements:

28.91-68.93mm F2.85 at 1:9.4-1:3.9