Sigma AF 105mm F2.8 EX DG Macro Specifications
Product ID:
#257
Compatibility:
analog/digital
Diagonal Angle of View:
23.3°
Maximum Magnification:
1:1
Minimum Aperture:
F22 - F45
Number of Aperture Blades:
8
Iris Pattern:
Minimum Distance:
31.2cm (working distance at 1:1 is 121mm)
Filter Thread:
58mm
Maximum Diameter:
74mm
Length:
95mm
Weight:
450g
Focus Type:
internal 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:
260°
IR Capability:
reported by DPanswers
Lens Hood:
LH 580-02 (thread mounted)
Produced:
2004
Tests:
PopPhoto Measurements:
101.37mm F2.90
Additional Information:
The lens features a focus limiter. It is reported both to be capable and not capable for IR photography (IR Forum).