Lens Construction 13 Elements in 8 Groups

Angle of View (for SD1) 46.8 degrees

Number of Diaphragm Blades 9 Blades

Minimum Aperture F16

Minimum Focusing Distance 40cm / 15.8in.

Maximum Magnification 1:5.6 Filter Size 

Diameter 77mm Dimensions 

Diameter 85.4mm x Length 99.9mm / 3.4in. x 3.9in. Weight 815g / 28.7oz. C

Corresponding AF Mounts

Sigma 

Canon 

Nikon 

Sony