Sigma 15-30/3.5-4.5 EX Aspherical DG DF Zoom Lens f/ Sigma SA USA
Autofocus SLR Zoom Lenses

# 512110

Sigma 15-30/3.5-4.5 EX Aspherical DG DF Zoom Lens f/ Sigma SA USA Description

• Rectilinear Sigma 15-30mm f3.5-4.5 EX Aspherical DG DF lens is the first of its kind in the world.
• Incorporates hybrid aspherical lens in the front lens group to minimize distortion and astigmatism, and molded glass aspherical lens in the rear lens group to minimize spherical aberration.
• Dual focus mechanism and inner focusing system make it easy to hold, since the focusing ring does not rotate during auto focusing, and provides adequate torque during manual focusing.
• Designed for both digital and film Sigma SLR camera systems, such as Sigma SA5, SA7, SA9 and Foveon SD9 (Effective zoom range: 22.5-45mm on most SLR digitals).
• 6 group zoom system mechanical design minimizes astigmatism for all focal lengths.
• Includes non-removable type lens hood (Petal-shaped) to prevent extraneous light harmful for image quality.
• Uses rear gelatin (insert type) filters. The iris diaphragm has 8 blades to obtain beautiful out focus of image in the foreground and background.
• Minimum aperture: 22-32.
• Minimum focus: 11.8".
• Macro rating 1:6.
• Dimensions: 3.4 x 5.1".
• Weighs 21.8oz.
• Includes case, hood & caps. Gelatin filters must be purchased separately.