13 Elements in 11 Groups
Angle of View 18.2 - 6.2 degrees
Number of Diaphragm Blades 9 Blades
Minimum Aperture F32
Minimum Focusing Distance 200- 220cm
(78.7 in.-86.6 in.)
Maximum Magnification 1:5.3
Filter Size 77mm
Dimensions: 7.4 x 3.3 x 3.3
Weight 2.8 LBS
Date Available 10-4-06
Price ~$810
Sigma Website
Attachment 4190