Lens Specifications
Name Sigma APO 1.4X EX DG
Image Circle 35mm
Type Teleconverter
Focal Length Multiplier 1.4X that of the master lens
Effective Reduction in Aperture 1 f-stop
Lens Construction 5 elements in 3 groups
Closest Focus Same as that of master lens
Magnification Ratio 1.4X that of master lens
Dimensions(Length x Diameter) 19.5mm x 68.5mm / 0.75 in. x 2.7 in.
Weight 143g / 5 oz
Notes Available AF Mounts: Canon, Nikon, Sigma, Sony Alpha
Typical Online Price US$224