Description
The Sigma 18-35mm f/1.8 DC HSM Lens for Nikon is a wide-angle
to normal-length zoom lens that features a fast, bright constant f/1.8
maximum aperture. It is specifically designed for use with APS-C-sized
sensors and provides a 35mm-equivalent focal length range of 27-52.5mm.
The lens integrates four aspherical elements into its construction as
well as five Special Low Dispersion (SLD) glass elements to help
minimize various aberrations and distortions throughout the zoom range
as well as provide greater image sharpness and clarity. A Super
Multi-Layer Coating has also been applied to lens elements to reduce
surface reflections, lens flare, and ghosting to produce images with
higher contrast and color fidelity. The lens barrel design is
constructed from a Thermally Stable Composite (TSC) material that is
akin to metal in texture and resistance to temperature and environmental
changes while also remaining lightweight and compact. An internal
focusing and zooming mechanism also helps to maintain a compact and
consistent overall length and non-rotating front ring also better
enables the use of circular polarizing filters. For control of focus, a
Hyper Sonic Motor (HSM) is used to ensure fast, precise, and quiet
focusing capabilities that are well suited to continuous shooting and
movie recording.
For updating lens firmware and fine-tuning its
nuances to best suit your personal shooting, this lens is compatible
with the Sigma USB Dock. The dock allows you to specify certain
parameters and other settings through the Sigma Optimization Pro
software, such as AF speed and focusing limitations.
- Art Lens Line
- This lens is part of Sigma's Art line; deeming it well-suited to creative image making due to its large, constant f/1.8 maximum aperture and ability to produce aesthetic bokeh by way of a nine-blade circular diaphragm. The range of focal lengths it covers, from wide-angle to normal-length, is nicely situated for everyday and artistic shooting applications.
- Optimized Lens Design
- Four aspherical lens elements, as well as the incorporation of five SLD glass elements, help to minimize the appearance of distortions and aberrations throughout the zoom range and provide clear imagery with enhanced sharpness. A Super Multi-Layer Coating also benefits the image quality by reducing reflections and flare and contributing to greater overall contrast and fidelity.
- Hyper Sonic AF Motor
- The Hyper Sonic Motor provides fast, quiet, and smooth auto focusing that is well-suited for use with video applications. This AF motor can also be manually overridden at any time by rotating the focusing ring, giving you the ability to fine-tune image sharpness through manual focusing.
- USB Dock
- Compatible with Sigma's USB Dock and Sigma Optimization Pro software for fine-tuning your lens' performance, updating its firmware, and better suiting it to your needs.
- Other Lens Features
-
- Constructed using a TSC compound material, this lens is lightweight while also exhibiting notable durability and resistance to environmental changes.
- An internal focusing and zooming mechanism helps to maintain a consistent overall lens length and a non-rotating front ring facilitates more efficient use of circular polarizers.
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