About Cabling Installation & Maintenance

Our mission: Bringing practical business and technical intelligence to today's structured cabling professionals

For more than 30 years, Cabling Installation & Maintenance has provided useful, practical information to professionals responsible for the specification, design, installation and management of structured cabling systems serving enterprise, data center and other environments. These professionals are challenged to stay informed of constantly evolving standards, system-design and installation approaches, product and system capabilities, technologies, as well as applications that rely on high-performance structured cabling systems. Our editors synthesize these complex issues into multiple information products. This portfolio of information products provides concrete detail that improves the efficiency of day-to-day operations, and equips cabling professionals with the perspective that enables strategic planning for networks’ optimum long-term performance.

Throughout our annual magazine, weekly email newsletters and 24/7/365 website, Cabling Installation & Maintenance digs into the essential topics our audience focuses on.

  • Design, Installation and Testing: We explain the bottom-up design of cabling systems, from case histories of actual projects to solutions for specific problems or aspects of the design process. We also look at specific installations using a case-history approach to highlight challenging problems, solutions and unique features. Additionally, we examine evolving test-and-measurement technologies and techniques designed to address the standards-governed and practical-use performance requirements of cabling systems.
  • Technology: We evaluate product innovations and technology trends as they impact a particular product class through interviews with manufacturers, installers and users, as well as contributed articles from subject-matter experts.
  • Data Center: Cabling Installation & Maintenance takes an in-depth look at design and installation workmanship issues as well as the unique technology being deployed specifically for data centers.
  • Physical Security: Focusing on the areas in which security and IT—and the infrastructure for both—interlock and overlap, we pay specific attention to Internet Protocol’s influence over the development of security applications.
  • Standards: Tracking the activities of North American and international standards-making organizations, we provide updates on specifications that are in-progress, looking forward to how they will affect cabling-system design and installation. We also produce articles explaining the practical aspects of designing and installing cabling systems in accordance with the specifications of established standards.

Cabling Installation & Maintenance is published by Endeavor Business Media, a division of EndeavorB2B.

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Sigma Introduces 17mm F4, 50mm F2, and 23mm F1.4 Lenses for L & Sony E-mount Cameras and 16mm F1.4, 30mm F1.4, and 56mm F1.4 for Nikon Z Mount APS-C Cameras; YouTube First Look with More Info at B&H Photo Video

B&H is pleased to share Sigma’s announcement of three primes for L and Sony E-mount cameras: the Sigma 17mm f/4 DG DN and 50mm f/2 DG DN for full-frame cameras, and the 23mm f/1.4 DC DN for APS-C format cameras. All members of the Contemporary lineup, the trio pairs compact and intuitive designs with exceptional imaging.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20230403005063/en/

Sigma has announced three primes for L and Sony E-mount cameras: the 17mm f/4 DG DN and 50mm f/2 DG DN for full-frame cameras and the 23mm f/1.4 DC DN for APS-C format cameras. All members of the Contemporary lineup, the trio pairs compact and intuitive designs with exceptional imaging. (Graphic: Business Wire)

Sigma has announced three primes for L and Sony E-mount cameras: the 17mm f/4 DG DN and 50mm f/2 DG DN for full-frame cameras and the 23mm f/1.4 DC DN for APS-C format cameras. All members of the Contemporary lineup, the trio pairs compact and intuitive designs with exceptional imaging. (Graphic: Business Wire)

Sigma 17mm f/4 DG DN Contemporary Lens (Sony E)

https://www.bhphotovideo.com/c/product/1757610-REG/sigma_415965_17mm_f_4_dg_dn.html

Key Features

  • Full-Frame | f/4 to f/22
  • Compact Ultra-Wide Angle Prime
  • Fast Internal Focus System
  • Rounded 7-Blade Diaphragm
  • Metal Lens Barrel
  • Dust & Splash-Resistant Design

The Sigma 17mm f/4 and 50mm f/2 become the eighth and ninth lenses to join Sigma’s illustrious I-series, cherished for their metal housing, tactile controls, and compact form. The 17mm is the widest lens in the series, offering a focal length ideal for landscape, architecture, and travel photography. It can focus as close as 4.7 inches from subjects for creative closeups, selfies, or vlogging. An AF/MF switch allows you to change focusing modes on the lens quickly.

The 50mm offers a standard focal length well suited for portrait, food, and street photography. While not as fast as Sigma’s 50mm f/1.4 DG DN Art lens, it is considerably smaller and lighter, making it an excellent option for travel or everyday carry, and its 9-blade rounded diaphragm is no slouch for creative focusing. It becomes the fifth f/2 I-series lens and shares an arc-type AF/MF switch with its predecessors.

Both I-series lenses are powered by a stepping motor, for fast and quiet autofocusing, and a tactile aperture ring. They are dust and splash resistant and come with metal lens hoods and magnetic lens caps.

Rounding out the excitement is the 23mm f/1.4, offering the equivalent of a 35mm focal length when used with an APS-C format camera. This compact, lightweight prime is an appealing choice for capturing street, landscape, architecture, and video. Like the other lenses in this release, it relies on a stepping motor for quick and accurate AF. Its optics combat flare and ghosting and allow you to get as close as ten inches from subjects. Its mount is dust and splash resistant. In addition to the L and Sony E-mount models, Sigma has teased the future release of a FUJIFILM X-mount version of this lens.

First Look YouTube on Nikon Lenses

https://youtu.be/pUh-9OWUZF8

Learn More about the Sigma Lenses

https://www.bhphotovideo.com/explora/videos/photography/sigma-contemporary

Additional Sigma News:

Sigma has added Nikon Z Mount compatibility to three existing primes in the Contemporary lineup: the 16mm f/1.4, 30mm f/1.4, and 56mm f/1.4 DC DN lenses. Created for Nikon's APS-C format mirrorless cameras, the new primes balance bright, f/1.4 maximum apertures with compact builds. With 35mm equivalent focal lengths of 24mm, 45mm, and 84mm, respectively, there is a Z mount option for nearly every type of photographer in the new batch.

About B&H Photo Video

As the world's largest source of photography, video, and audio equipment, as well as computers, drones, and home and portable entertainment, B&H is known worldwide for its attentive, knowledgeable sales force and excellent customer service, including fast, reliable shipping. B&H has been satisfying customers worldwide for over 45 years.

Visitors to the website can access a variety of educational videos and enlightening articles. The B&H YouTube Channel has an unmatched wealth of educational content. Our entertaining and informative videos feature product overviews from our in-house specialists. You can view the B&H Event Space presentations from many of the world's foremost experts and interviews with some of technology's most dynamic personalities. Tap into this exciting resource by subscribing to the B&H YouTube Channel here. In addition to videos, the B&H Explora blog presents new product announcements, gear reviews, helpful guides, and tech news written by product experts and industry professionals, as well as our award-winning podcasts.

When you’re in Manhattan, take a tour of the B&H Photo SuperStore, located at 420 Ninth Avenue. The techno-carousel spins all year round at the counters and kiosks at B&H. With hundreds of products on display, the B&H Photo SuperStore is the place to test-drive and compare all the latest gear.

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