Sigma 17-35mm f/2.8-4 EX DG IF HSM Aspherical Lens Review
Sigma’s 17-35mm f2.8-4 EX combines a fast f2.8-4 maximum aperture with ultra wide angle zoom lens of 17-35mm. Sigma 17-35mm f2.8-4 EX incorporates aspherical lens elements in the front, as well as rear lens groups, to correct spherical aberration. Sigma 17-35mm f2.8-4 EX also incorporates internal focusing to prevent deterioration of the optical quality at close distances and to eliminate rotation of the front barrel during focusing. A “perfect hood” is provided. The AF drive for Sigma SA and Canon AF SLR cameras is equipped with a silent, responsive and fast Micro Hyper Sonic Motor (H.S.M.). The lens materials used in this new lens are lead and arsenic free ecological glass.
Sigma 17-35mm f/2.8-4 EX DG IF HSM Aspherical Lens Features
- Sigma EX lens with 17-35mm zoom
- Incorporates aspherical lens elements in the front, as well as rear lens groups
- Equipped with a silent, responsive and fast Micro Hyper Sonic Motor (HSM)
- Incorporates internal focusing to prevent deterioration of the optical quality at close distances
- Use with Canon SLRs that are compatible with AF lenses
Sigma 17-35mm f/2.8-4 EX DG IF HSM Aspherical Lens Specifications
- Lens Type: Wide-angle zoom lens
- mounting_type: Canon EF
- Camera Magnify Power: 1 / 4.5
- lens_system_special_functions: Zoom, Wide angle
- maximum_aperture_range: F/2.8-4.0
- Minimum focal length: 17 millimeters
- Maximum focal length: 35 millimeters
- min_focal_range: 10.6 inches
- Focus Type: auto-focus, manual-focus
- Optical zoom: 2
- Real Angle Of View: 103.7
- Weight: 19.8 Ounces
- Item Display Diameter: 3.3 inches
- Length: 3 inches
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