User Manual for Sigma 18-35mm f 1.8 DC HSM Art Lens for Pentax K Click to enlarge the picture
Contents of the user manual for the Sigma 18-35mm f 1.8 DC HSM
- Product category: SLR Lenses Sigma
- Brand: Sigma
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Sigma SLR Lenses
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User manual for the Sigma 18-35mm f 1.8 DC HSM contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Sigma product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Sigma user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Sigma product will considerably shorten its lifespan!
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Product description Hands-On Review: the Sigma 18-35mm f/1.8 Lens Read More vaextqzzywwvedrcubwysfysxxutv - Sigma 18-35mm f/1.8 DC HSM Lens Demo
The Pentax K-mount Sigma 18-35mm f/1.8 DC HSM Art Lens is a wide-angle to normal-length zoom 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.
- 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.
- Other Lens Features
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- 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.
UPC: 085126210618 In the Box Sigma 18-35mm f/1.8 DC HSM Art Lens for Pentax K Petal-Type Lens Hood Front Lens Cap Rear Lens Cap Pouch Limited 1-Year Warranty Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects. Best SLR Lenses of 2017 Bjorn Petersen 12/04/2017 vaextqzzywwvedrcubwysfysxxutv Macro Lens Buying Guide Todd Vorenkamp 11/27/2018 Table of Contents
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Technical parametersSigma 18-35mm f/1.8 DC HSM Art Specs | Focal Length | 18 to 35mm (35mm Equivalent Focal Length: 27 to 52.5mm) | | Maximum Aperture | f/1.8 | | Minimum Aperture | f/16 | | Lens Mount | Pentax K | | Format Compatibility | APS-C | | Angle of View | 76.5
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