The Sigma 18-35Mm F1.8 Dc Art Hsm Lens Is The First Wide-Angle Zoom Lens (As Of 22Nd April 2013) To Achieve A Maximum Aperture Of F/1.8 Throughout The Entire Zoom Range. This Lens Incorporates A Wide Glass Moulded Aspherical Lens With Special Low Dispersion (Sld) Glass To Compensate For Aberrations And Curvature At The Widest Angle. It Has A 9-Blade Rounded Diaphragm To Create Attractive Round Bokeh At Large-Aperture Settings, And An Inbuilt Hsm (Hyper Sonic Motor) That Ensures A Silent, High-Speed Af. Ideal For Landscapes, Portraits, Still Life, Snap Shots, Casual, And Close-Ups, This Lens Is Suitable For Cropped (Aps-C) Sensor Cameras.
Sigma 18-35Mm F1.8 Dc Art Hsm Lens Key Features:
- Impressively Fast Constant Aperture Of F/1.8
- Features A Minimum Focusing Distance Of 28Cm And A Maximum Magnification Ratio Of 1:4.3 Making This Lens Ideal For Close-Ups
- Designed For Aps-C (Crop) Sized Sensors
- 35Mm Equivalent Focal Length: 28.8-56Mm
- Hyper Sonic Af Motor For Quiet, High-Speed Af
- Includes A High-Precision, Rugged Brass Bayonet Mount For Extra Durability
- Comes With A 9 Blade-Rounded Diaphragm Which Creates An Attractive Blur To The Out-Of-Focus Areas Of The Image
- Internal Focusing And Zoom Prevents Changes In Length Of The Lens For Convenient Handling
- 4 X Aspherical And 5 X Sld Glass Elements
- Super Multi-Layer Coating Reduces Flare And Ghosting, Providing Sharp And High Contrast Images Even In Backlit Conditions
- Compatible With Sigma Usb Dock
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