Directory of Lens Tests

Author: John Honovich, Published on Jan 11, 2012

This directory collects our lens test reports and related lens information.

Lens Tests

HD Lens Shootout - Our most popular and 'flagship' lens test pits a number of lens manufacturers (like Fujinon, Tamron, Computar, etc.) to see which one delivers the best image quality during the day, at night and at the edge of the FoV. Moderate differences in performance were found.

P-Iris Lens Test - An alternative to auto and manual iris lenses, this is being championed by Axis and adopted by a handful of other manufacturers. Our tests results showed disappointing performance of P-Iris.

GBO Infinity Lens Test - A speciality lens claiming to deliver 'massive' depth of field. Our test results showed disappointing performance.

Theia Wide Angle Lens Test - A speciality lens claiming to deliver very wide Field of Views. Our test results show interesting potential but material overmarketing.

Pentax Plus Lens Test -A speciality lens that claims to simplify focusing and Field of View setup. Our test results show surprising good performance and usability.

Other Lens Reports

In addition to our test results, we have a number of other related resources on lenses:

Training: Using Lens Calculators -  Figuring out what the right lens and the right Field of View can be challenging. We walk through a number of lens calculator providing best practices to get the most out of the calculators.

Statistics: Varifocal vs Fixed Focal Lenses - The most fundamental choice in lens is often between varifocal and fixed focal lenses. In this note, we examine why integrators prefer varifocal over fixed focal lenses by such a wide margin.

Statistics: Auto Back Focus Preferences - A feature growing in popularity, automatic focus promises to make it easier to focus a lens without having to depend on the installer to physically get it just right. In this note, we examine how and why integrators use auto back focus.

Comments : PRO Members only. Login. or Join.

Related Reports

Reseting IP Cameras - 30 Manufacturer Directory on Sep 22, 2017
Every camera has a reset button (well, almost) but it is not always clear what these buttons do, how long they need to be held, what settings they...
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...
Directory Of Consumer Security Cameras on Aug 16, 2017
The consumer camera segment continues to grow, with new startups and models from existing players released seemingly every month. In this report we...
Vulnerability Directory For Access Control Cards on Aug 14, 2017
Knowing which access credentials are insecure can be unclear, especially because most look and feel the same. Even the most insecure 125 kHz types...
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...
Directory of 40 IP Camera Manufacturer Discovery Tools on Jun 19, 2017
Locating the IP address of a DHCP client or factory defaulted device on a network is often a difficult task.  In another report, we discussed...
Manufacturer Revenue Directory on Jun 05, 2017
This report contains data on the revenue of 32 security manufacturers, trend analysis of whether they are gaining or losing ground and commentary...
Remote Video Monitoring Providers Directory on May 21, 2017
Remote video monitoring can help integrators generate RMR plus end users lower their security costs and/or improve response to critical...
Axis Criticizes OEMs: "When You Buy An Axis Camera, An Axis Camera Is What You Get!" on May 19, 2017
When you buy a Honeywell camera, you likely get a Hikvision, Dahua or some other company's product. The same goes for easily 100 different...
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

Camera Multi-Streaming Usage on Nov 22, 2017
IP cameras typically support multiple streams, allowing a single camera to transmit multiple streams at different resolutions, frame rates and even...
Law Breaking Longse Enters USA on Nov 22, 2017
Longse has established itself as world class, at least in spamming the industry, ripping off Milestone and Video Insight as well as Hikvision. But...
Amazon Key In-Home Package Delivery Examined on Nov 21, 2017
Interesting idea or invitation for criminals to rob you? Amazon's recent announcement of Key, a service that will help manage visitors, welcoming...
Top Maglock Provider Warns Against Using Maglocks on Nov 21, 2017
Do not buy my company's product. It sounds strange indeed, but a senior Allegion consultant stated that maglocks should not be used in common...
CBR vs VBR vs MBR - Surveillance Streaming on Nov 21, 2017
How you stream video has a major impact on quality and bandwidth. And it is not simply CODEC choice (e.g., H.264 vs H.265). Regardless of the...
Hikvision Chinese Government Owner CETHIK Exposed on Nov 20, 2017
Hikvision deceives about its Chinese government ownership. Contrary to their claims about 'independence' and simply having 'shareholders' that are...
Dahua Hard-Coded Credentials Vulnerability on Nov 20, 2017
A newly discovered Dahua backdoor is described by the researcher discovering it as: not the result of an accidental logic error or poor...
Panasonic Unified Surveillance Strategy Analyzed on Nov 17, 2017
Panasonic is now a "Unified Surveillance" offering, as their ASIS 2017 booth proclaimed: Looking to make a comeback in the security industry,...
Amazon Cloud Cam Is Poor (Tested) on Nov 17, 2017
Retail behemoth Amazon has entered the surveillance market with the Amazon Cloud Cam, the eyes of its just-announced Amazon Key delivery...
Nest Secure Alarm System Tested on Nov 16, 2017
Google's expansion continues, this time into home security with their Nest subsidiary's move into alarm systems. They paid more than a...

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