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The Sigma 18-35mm f1.8 DC HSM Lens is the first wide-angle zoom lens (as of 22nd April 2013) to achieve a maximum aperture of f1.8 throughout the entire zoom range. The Sigma 18-35mm is a standard zoom lens that offers a focal range equivalent to 27-52.5mm in the 35m format. The 9 blade rounded diaphragm creates an attractive round bokeh at large-aperture settings, while the HSM (Hyper Sonic Motor) ensures a silent, high-speed AF. This lens incorporates a wide glass More
Key Features: Sigma 18-35mm f1.8 DC HSM Lens - Nikon Fit
Fast constant aperture of f/1.8
Designed for APS-C (crop) sized sensors
35mm equivalent focal length: 28.8-56mm
Hyper Sonic AF Motor for quiet, high-speed AF
Internal focusing and zoom
4 aspherical & 5 SLD glass elements
Super Multi-Layer Coating
Compatible with Sigma USB Dock
Engineered for those who see photography as a critical expression of self, our Art line offers sophisticated optical performance and abundant expressive power to deliver faithfully on your artistic vision.
The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.
These are special lenses designed for APS-C size sensors so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus!
This lens uses a motor driven by ultrasonic waves to provide a quiet, high-speed AF.
To ensure stability in focusing, this lens moves the inner lens group(s) without changing the lens' physical length.