Theia Debuts 5-Megapixel, IR Corrected Telephoto Lens

  • Apr 12, 2011

Theia Technologies announces the expansion of its line of high quality, megapixel resolution lenses with the new SL940 telephoto lens. 

With 5 megapixel resolution, IR correction and its compact size, the lens provides a combination of features rarely found in other telephoto lenses available on the market today. 

The new SL940 features a focal range of 9 to 40mm providing 36-degree to 7-degree horizontal field of view.  With its 5 megapixel resolution, 4.5x optical zoom and 16x digital zoom capability the lens allows the user to drill down into the image capturing subjects in high detail.

The lens is IR corrected, maintaining focus in both visible and Near Infrared areas of the light spectrum and can be used with true Day/Night cameras. 

And the lens is only 49.5mm long allowing it to fit in most mini-domes.  Many telephoto lenses on the market are 3 inches long or more, often making them unusable in all but the largest and bulkiest dome enclosures.

The lens was developed to offer the security industry another unique product not found today.  “Theia developed the SL940 lens to respond to continued security industry complaints about the small offering of good quality megapixel lenses available on the market.  The SL940 telephoto lens complements our family of ultra wide undistorted lenses, using patented Linear Optical Technology, expanding the fields of view available in high megapixel resolution lenses,” said Jeff Gohman, president of Theia Technologies. 

The CS-mount lens was designed to cover 1/2.5" imagers and smaller including 1/3-inch, 1/2.7-inch HD size sensors.  The lens is available in manual and DC autoiris versions. 

Featured

  • The Evolution of IP Camera Intelligence

    As the 30th anniversary of the IP camera approaches in 2026, it is worth reflecting on how far we have come. The first network camera, launched in 1996, delivered one frame every 17 seconds—not impressive by today’s standards, but groundbreaking at the time. It did something that no analog system could: transmit video over a standard IP network. Read Now

  • From Surveillance to Intelligence

    Years ago, it would have been significantly more expensive to run an analytic like that — requiring a custom-built solution with burdensome infrastructure demands — but modern edge devices have made it accessible to everyone. It also saves time, which is a critical factor if a missing child is involved. Video compression technology has played a critical role as well. Over the years, significant advancements have been made in video coding standards — including H.263, MPEG formats, and H.264—alongside compression optimization technologies developed by IP video manufacturers to improve efficiency without sacrificing quality. The open-source AV1 codec developed by the Alliance for Open Media—a consortium including Google, Netflix, Microsoft, Amazon and others — is already the preferred decoder for cloud-based applications, and is quickly becoming the standard for video compression of all types. Read Now

  • Cost: Reactive vs. Proactive Security

    Security breaches often happen despite the availability of tools to prevent them. To combat this problem, the industry is shifting from reactive correction to proactive protection. This article will examine why so many security leaders have realized they must “lead before the breach” – not after. Read Now

  • Achieving Clear Audio

    In today’s ever-changing world of security and risk management, effective communication via an intercom and door entry communication system is a critical communication tool to keep a facility’s staff, visitors and vendors safe. Read Now

  • Beyond Apps: Access Control for Today’s Residents

    The modern resident lives in an app-saturated world. From banking to grocery delivery, fitness tracking to ridesharing, nearly every service demands another download. But when it comes to accessing the place you live, most people do not want to clutter their phone with yet another app, especially if its only purpose is to open a door. Read Now

Most   Popular

New Products

  • PE80 Series

    PE80 Series by SARGENT / ED4000/PED5000 Series by Corbin Russwin

    ASSA ABLOY, a global leader in access solutions, has announced the launch of two next generation exit devices from long-standing leaders in the premium exit device market: the PE80 Series by SARGENT and the PED4000/PED5000 Series by Corbin Russwin. These new exit devices boast industry-first features that are specifically designed to provide enhanced safety, security and convenience, setting new standards for exit solutions. The SARGENT PE80 and Corbin Russwin PED4000/PED5000 Series exit devices are engineered to meet the ever-evolving needs of modern buildings. Featuring the high strength, security and durability that ASSA ABLOY is known for, the new exit devices deliver several innovative, industry-first features in addition to elegant design finishes for every opening.

  • Camden CM-221 Series Switches

    Camden CM-221 Series Switches

    Camden Door Controls is pleased to announce that, in response to soaring customer demand, it has expanded its range of ValueWave™ no-touch switches to include a narrow (slimline) version with manual override. This override button is designed to provide additional assurance that the request to exit switch will open a door, even if the no-touch sensor fails to operate. This new slimline switch also features a heavy gauge stainless steel faceplate, a red/green illuminated light ring, and is IP65 rated, making it ideal for indoor or outdoor use as part of an automatic door or access control system. ValueWave™ no-touch switches are designed for easy installation and trouble-free service in high traffic applications. In addition to this narrow version, the CM-221 & CM-222 Series switches are available in a range of other models with single and double gang heavy-gauge stainless steel faceplates and include illuminated light rings.

  • Unified VMS

    AxxonSoft introduces version 2.0 of the Axxon One VMS. The new release features integrations with various physical security systems, making Axxon One a unified VMS. Other enhancements include new AI video analytics and intelligent search functions, hardened cybersecurity, usability and performance improvements, and expanded cloud capabilities