Sigma APO Teleconverter 1.4x EX DG for Sigma Mount Lenses

Product description

• Will multiply the focal length of your camera's existing lens by 1.4x, and will cut back the amount of light by one f-stop
• Features a new multi-layer lens coating and lens design that reduces flare and ghost, and creates an optimum color balance through the entire zoom range
• Constructed of five elements in three groups, weighs 5 ounces, and measures 2.7 x 0.75 inches (Diameter x Length)
• Comes with front and rear lens caps, and a soft carrying case
• Backed by a 1-year worldwide warranty with a 3-year extended US warranty