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

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Sigma Announces AF Cine Lenses and Three New Full-Frame Lenses for Sony E, L-Mount; YouTube First Look and More Info at B&H

NEW YORK, Sept. 09, 2025 (GLOBE NEWSWIRE) -- B&H is pleased to share the new Sigma announcement of the company’s first-ever autofocus-enabled cine lens, the 28-45mm T2 AF Cine Zoom. It’s the first of a new AF Cine Line representing the company’s intent to bring the optical prowess of its Art lenses into the dedicated filmmaking space. The lens is available for both Sony E and L-mount mirrorless cameras.

Speaking of Art lenses, Sigma is also announcing two new Art lenses for full-frame Sony E and L-Mount cameras, the 35mm f/1.2 DG II Art and the 135mm f/1.4 DG Art, along with the 20-200mm f/3.5-6.3 DG Contemporary lens. The trio signals Sigma’s continued dedication to optical innovation for photo-first shooters, with the primes delivering professional-quality portraiture and the new zoom bringing unprecedented versatility to travel and everyday photography.

Sigma reveals three lenses for full-frame Sony E and L-Mount cameras, the 35mm f/1.2 DG II Art, 135mm f/1.4 DG Art, and the 20-200mm f/3.5-6.3 DG Contemporary lenses. The trio represents Sigma’s continued dedication to optical innovation, with the primes delivering professional-quality portraiture and the new zoom bringing unprecedented versatility to travel and everyday photography.

The 35mm f/1.2 DG II Art lens is a follow-up to the popular 2019 model and improves upon the original’s strong optical performance while reducing the overall footprint. The design adds a lens group for a total of 13, with 17 elements that include one SLD lens and four aspherical lenses yielding improved rendering and clarity across the aperture range. Arranged in a floating focus design that allows the groups to move independently of one another, the lens is nearly an inch shorter at 4.4”, and at 1.7 lb, weighs about 30% less than its predecessor.

The f/1.2 class of 35mm lenses excels at environmental portraiture, with the large maximum aperture offering exceptional subject isolation in the wider perspective. This Sigma lens balances subject sharpness with high-quality bokeh that suppresses color bleeding and double-line artifacts.

At the opposite end of the portraitist’s toolkit lands the 135mm f/1.4 DG Art, which Sigma claims is the first of its kind to deliver autofocus at this wide maximum aperture. The company also states that the new lens’s large bokeh out-butters its infamous “Bokeh Master” 105mm f/1.4 DG HSM lens, long a favorite of portrait photographers. Also featuring 17 elements in 13 groups and a floating focus design, with four FLD and two aspherical elements, the lens suppresses the aberrations characteristic of the focal length to deliver sharp, detailed images with shallow depth-of-field. The 13-blade diaphragm gives the bokeh its natural, near-circular shape.

Sigma anticipates that the lens’s additional speed will position it atop the 135mm portrait prime category, with its bokeh and depth-of-field outclassing that of conventional f/1.8 lenses.

For shooters seeking maximum versatility in a single lens, the company introduces the first-of-its-kind 20-200mm f/3.5-6.3 DG Contemporary, whose 10x wide-to-tele range is matched by its compact, lightweight form factor. At 4.5” long and weighing 1.2 lb, the lens is built to carry all day and capture the breadth of everyday life. The lens’s construction features 18 elements in 14 groups, with an FLD lens, three SLD lenses, and four aspherical elements.

Within the 28-85mm focal range, the lens also achieves a maximum magnification ratio of 1:2, benefiting macro photography. The minimum focusing distance closes down to just 6.5” at 28mm, with a range of 9.9” at the wide end and 25.6” at the tele end.

The autofocus on all three lenses is driven by Sigma’s High-Response Linear Actuator motors, with the Art primes featuring the dual HLA system for fast, quiet, and accurate focusing. All three are built with multiple on-body shooting assist functions, dust and splash-resistant structures, and water and oil-repellent coatings. The Art primes also feature the series’ signature aluminum and magnesium alloy builds.

Accessories for the lenses will accompany the release, including hoods, caps, filters, protectors, and an Arca-type tripod socket for the 135mm f/1.4.

Learn more with Explora
https://www.bhphotovideo.com/explora/photography/news/sigma-debuts-three-new-full-frame-lenses-for-sony-and-l-mount

Sigma New Lenses - YouTube First Look Video
https://youtu.be/b6baR5JVWfM

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 50 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.

The B&H Payboo Credit Card offers the industry’s best instant savings and special financing, subject to credit approval. Visit B&H’s Payboo Page to learn more and apply.

Contact Information
Geoffrey Ngai
B&H Photo Video
212-615-8820
https://www.bhphotovideo.com/

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/e4cc2225-e887-4080-9fcd-07c7e200157a

A video accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/99dbd69b-31b9-4e6a-933f-97fb835dd69b


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