Sigma 105mm f/2.8 EX DG lens

The Sigma 105mm f/2.8 EX DG is a macro lens produced by Sigma Corporation. The lens has six different variates, fitting on the Sigma SA mount, Canon EF mount, Four Thirds System, Pentax K mount, Minolta A-mount, and the Nikon F-mount.^[1][2]

105mm f/2.8 APO Macro EX DG

Maker	Sigma Corporation
Technical data
Focal length	105mm
Aperture (max/min)	f/2.8 - f/45
Close focus distance	31.3 cm.
Max. magnification	1:1
Diaphragm blades	8
Construction	11 elements in 10 groups
Features
Short back focus	No
Lens-based stabilization	No
Macro capable	Yes
Application	Macro
Physical
Max. length	97.5 mm.
Diameter	74 mm.
Weight	460 g
Filter diameter	58 mm
Retail info
MSRP	$640 USD