Sigma AF 20mm F1.8 EX DG Aspherical RF DF Specifications

Product ID:

#411

Compatibility:

analog/digital (formerly Photozone reported aperture control problems for EOS 30, 33, 1, 1N, 1V and D30)

Diagonal Angle of View:

94.5°

Maximum Magnification:

1:4

Minimum Aperture:

F22

Number of Aperture Blades:

9

Iris Pattern:

 

Minimum Distance:

20cm

Filter Thread:

82mm

Maximum Diameter:

88.6mm

Length:

87mm

Weight:

520g

Focus Type:

rear focus, 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 875-02 (flower shaped)

Produced:

2000

Tests:

PhotoZone tested on EOS 350D; Popular Photography

PopPhoto Measurements:

20.58mm F1.76 at 1:4.2

Nickname:

"Bargain Bucket"/"El Hombre"

Additional Information:

The Lens received the EISA Lens of the Year Award 2001-2002 and is reported to be IR capable (IR Forum).