Sigma EX 2,0x APO DG
SummmeringNew for the DG version is new coating reduces Ghost and Flare.
The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also creates an optimum color balance through the entire zoom range.
Lens construction: 6 elements in 5 groups
Focal length: 2x that of a master lens
Aperture coupling range: F2.8 - F32
Dimensions: 68.5 X 52mm