Ultrawide SL183 Lens Examined

Author: John Honovich, Published on Sep 02, 2010

Theia has announced a new addition to their ultawide angle lens lineup - the SL183. This note examines its positioning and differences from Theia's existing lenses.

  • The SL183 is Theia's first varifocal lens offering a focal length of 1.8 to 3.0 mm providing a Horizontal FoV of approximately 85-110 degrees (depending on imager size of camera). The varifocal capability allows for optimizing the specific field of view for customer's preferences.
  • The lens is designed to stay in focus even if you change the magnification/zoom. They are referring to this as Truezoom (and is similar to SLR zoom lens functionality). The lens is not motorized and cannot be controlled remotely by the camera.
  • The lens is moderately shorter than other Theia lenses (50mm vs 56mm or 59mm for other Theia lenses). Theia reports that this will allow the lens to better fit in some dome housings.
  • The SL183 is rated for 5MP resolution.
  • The SL183 is positioned as a complement to to their existing lenses. While those lenses provide wider FoV, this lens provides varifocal capability and a smaller form factor.
  • The MSRP of the SL183 is $299. The SY110 has an MSRP of $248 (similar max focal length but fixed focal length). The SY125 has an MSRP of $440 (widest FoV offered).

For more information on Theia, review our test results on their widest lens - the SY125M.

1 report cite this report:

New Products Reviewed Fall 2010 on Oct 12, 2010
In this report, we aggregate all our new products reviews for Fall 2010 announcments. Products Reviewed The following new products are reviewed....
Comments : PRO Members only. Login. or Join.

Related Reports on Lenses

Camera Focusing Tutorial on Aug 09, 2018
A camera's focus is fundamental to quality imaging. Mistakes can cause important problems. In this guide, we explain focus issues and proper...
Avigilon H4 Multi-Sensor Adds 32MP, H.265, Analytics on Jun 13, 2018
Avigilon has announced the H4 Multisensor, the successor to their repositionable multi imager line, adding features like H.265, integrated IR,...
Top Features For Easy Camera Installation (Statistics) on Jun 05, 2018
Camera installation is the most fundamental and common task for video security technicians. Because of this, camera manufacturers market their...
Installing Box Cameras Indoors Tutorial on May 22, 2018
This tutorial starts our physical installation for video surveillance series, starting with Box Cameras, one of the oldest and most basic types....
Axis Launches First Stereographic Panoramic Camera on Apr 05, 2018
Fisheye panoramics have not had much innovation in the past few years, with their multi-imager cousins getting most of the advances, e.g.,...
Dahua 4K Micro 4/3 Camera Tested (IPC-HF8835F) on Apr 03, 2018
Dahua is going big. Their new 4K HF8835F Micro Four Thirds sensor is one of the largest now on the market. Dahua is claming: Starlight...
Camera Form Factor Guide on Mar 16, 2018
When selecting surveillance cameras, users may choose from a number of different form factors, each with its own unique strengths and weaknesses,...
Dahua 4K IR PTZ Tested on Aug 21, 2017
4K has made its way to IR PTZs. In this report, we examine the Dahua 6AE830VNI, a 4K PTZ with 30x optical zoom, 200m (~650') integrated IR, and...
IP Camera Specification / RFP Guide 2017 on Aug 14, 2017
RFPs are hard. Do them 'right' and it takes a lot of knowledge and time. Do them 'wrong' and you can be (a) unwittingly locked into a specific...
Technician Personal Protective Equipment (PPE) Guide on May 12, 2017
Technicians encounter multiple hazards when running wires and installing security devices. Wearing personal protective equipment, or PPE, helps...

Most Recent Industry Reports

Avigilon Announces AI-Powered H5 Camera Development on Sep 19, 2018
Avigilon will be showcasing "next-generation AI" at next week's ASIS GSX. In an atypical move, the company is not actually releasing these...
Favorite Request-to-Exit (RTE) Manufacturers 2018 on Sep 19, 2018
Request To Exit devices like motion sensors and lock releasing push-buttons are a part of almost every access install, but who makes the equipment...
25% China Tariffs Finalized For 2019, 10% Start Now, Includes Select Video Surveillance on Sep 18, 2018
A surprise move: In July, when the most recent tariff round was first announced, the tariffs were only scheduled for 10%. However, now, the US...
Central Stations Face Off Against NFPA On Fire Monitoring on Sep 18, 2018
Central stations are facing off against the NFPA over what they call anti-competitive language in NFPA 72, the standard that covers fire alarms....
Chinese Government Praises Hikvision Following Xi Jinping on Sep 17, 2018
The Chinese government council responsible for managing China's state-owned companies praised Hikvision’s obedience to China’s authoritarian leader...
Amazon Ring Spotlight Cam Tested on Sep 17, 2018
Amazon's Ring has released their latest camera entry, the Spotlight Cam, which we bought and tested in our Consumer IP Camera Analytics...
European Mega Security Firm Verisure Pushing Security Fog on Sep 17, 2018
The European mega security firm Verisure (Securitas Direct), with a reported 2 million customers, is pushing security fog, as shown in this BBC...
IP Camera Cable Labeling Guide on Sep 14, 2018
Labeling cables can save a lot of money and headaches. While it is easy to overlook, taking time to label runs during installation significantly...
Favorite Intercom Manufacturers 2018 on Sep 14, 2018
Intercoms are certainly increasing in popularity, driven by the integration of video and IP networking. But who is the favorite? On the one side,...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact