|
Sigma 20-40/2.8 EX Aspherical DG Zoom Lens f/Pentax AF USA Description
- This new 20-40mm f2.8 EX Aspherical DG DF lens provides f2.8 large maximum aperture for all focal lengths and incorporates aspherical lenses in the front lens group and rear lens group to minimize distortion, astigmatism and spherical aberration.
- DF (Dual Focus) mechanism and IF (Inner Focus) system make it easy to hold, since focusing ring does not rotate during auto focusing, with adequate dampening of focusing ring in manual focus.
- Designed for both digital conventional 35mm SLRs. Includes removable type lens hood (Petal shaped hood) to prevent extraneous light harmful for image quality.
- Filter size 82mm.
- Minimum aperture: 32.
- Minimum focus: 11.8".
- Macro rating 1:4.6.
- Dimensions: 3.5 x 4.2".
- Weighs 20.9oz.
- Includes case, hood & caps.
^top Sigma 20-40/2.8 EX Aspherical DG Zoom Lens f/Pentax AF USA page
|
