Lens Selection Standards for Camera Testing

Author: John Honovich, Published on May 15, 2011

With surveillance cameras, deciding what lenses to use for testing can be a difficult decision. We see two basic yet fundamentally opposing approaches:

  • Use the same lens on every camera tested: This approach ensures that no camera has an unfair lens advantage, allowing the test to focus on the camera's own performance.
  • Use the manufacturer recommended lens for each camera: This approach ensures that each camera uses the typical production lens, allowing the test to show real world use.

We use and recommend the second approach - testing with the manufacturer recommended lens for each camera. Here's why:

  • Many cameras have integrated lens: most domes, cube and bullet cameras as well as box cameras with built in optical zoom. For cameras with integrated lenses, it is simply impossible to use the same lens on every camera.
  • Many box cameras that allow for interchangeable lenses ship with a standard lens (e.g., Axis, Sony, IQ, IndigoVision, Mobotix, etc.). These manufacturers treat lenses as a core component of their camera system. If we used a different lens, this would be unrepresentative of the experience (good or bad) of regular users.
  • Even manufacturers that do not ship box cameras with lenses (e.g., Arecont Vision, Pelco Sarix), generally have recommended lenses that they sell and that many, if not most, of their users choose. In this scenario, we use the lens that the manufacturer recommend / sells.
  • If we did use the same lens on every camera (for cameras where this is possible), criticism would still exist as industry people would differ on the quality of the 'standard' lens chosen in our test (e.g. we used Lens Brand X but they prefer Lens Brand Y).

Our philosophy is to mirror real world use as closely as possible. To that end, using lens provided and/or recommended by the manufacturer is the best way to do this.

Indeed, it would actually be easier and cheaper to simply buy 10 lenses of the same brand/model and use them for every test. However, we are confident that this would result in increased criticism and concerns over the validity of the tests.

Given the differing approaches of manufacturers for lens provision, we do not think it is possible to reconcile or appease proponents of both approaches. On balance, we believe using the manufacturer recommended lens is the best approach for providing realistic comparisons.

1 report cite this report:

IPVM Seminar Poll Results on Sep 24, 2011
At our first ever IPVM seminar, we held a number of real time polls asking attendees what they thought on a variety of important surveillance...
Comments : PRO Members only. Login. or Join.

Related Reports

Access Control AHJ Nightmares on Jun 01, 2017
For access control jobs, a single person can be the difference between finishing a job, costing thousands in extra dollars, and being profitable...
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...
Varifocal Vs Fixed Lens Statistics 2017 on May 04, 2017
Varifocal camera lenses provide more flexibility at installation time, but come at a higher cost. Fixed lens cameras reduce hardware costs, but can...
2Gig Intrusion Megatest (GC2 & GC3 Panels Tested) on Mar 28, 2017
2Gig is one of the most widely used intrusion systems, with two product lines that are the main offering of many alarm companies, huge national...
Hikvision PanoVu Multi Imager Tested on Feb 08, 2017
Hikvision has entered the multi-imager market with their 180° PanoVu DS-2CD6986F-H, an 8MP, 4-imager model equipped with ~1/1.8" imagers and...
ONVIF Favorability Results on Jan 11, 2017
ONVIF has been one of the most debated aspects of the video surveillance industry. On the one hand, its aim to increase interoperability has been...
Introduction To Burglar Alarm Systems on Jan 04, 2017
While alarm systems are popular, balancing between the right level of protection, the appropriate components and an acceptable price can be very...
Avigilon Pro 4K Camera Tested on Jan 03, 2017
Avigilon is best known for their large sensor, high megapixel cameras. But with new offerings from Sony and soon Axis, the questions is how well...
ONVIF Tutorial 2017 on Dec 19, 2016
ONVIF is well known within the surveillance industry as an interface to connect IP cameras and VMS systems but: Is ONVIF a 'Standard'? Why...
Lens Iris Tutorial on Dec 19, 2016
Cameras, like humans, have irises. However, cameras have five types of iris options - fixed, manual, auto, P iris. In this tutorial, we explain the...

Most Recent Industry Reports

Importance of Sales To Integrators - Statistics on Jun 23, 2017
One of the top trends in the industry over the past few years has been the rise of across-the-board sales (e.g.: Hikvision Sales, Dahua Sale,...
Deep Learning Surveillance Startups Deep Problem on Jun 23, 2017
The undeniably good news for the video surveillance market is that we are seeing the rise of more startups than in many years. The cause of this...
Avigilon Announces RADAR-Based Presence Detector on Jun 22, 2017
RADAR is gaining momentum within physical security. Two months after Axis announced a network radar detector, Avigilon has announced a RADAR-Based...
Covert Cloud Camera Service Launching (KJB) on Jun 22, 2017
Cloud IP cameras, for consumers, has become increasingly commonplace. However, covert cameras, lag there, with few options. Now, North America's...
Manufacturers Shipping Unlicensed H.265 Products on Jun 22, 2017
While H.265 support in video surveillance is growing, IPVM's research shows that most surveillance manufacturers are shipping H.265 products with...
Uniview Low-Cost Bullet PTZ Tested on Jun 21, 2017
Uniview is offering a HD zoom bullet camera, the IPC742SR9-PZ30-32G, with an integrated pan / tilt positioner, for the price of a low-cost...
QSR Video Surveillance Best Practices on Jun 21, 2017
Fast food restaurants or QSRs (quick service restaurants), are frequent victims of crime and fraud. Because they are open late, deal with cash, and...
45 Drives 'Lowest Cost' Enterprise Storage Company Profile on Jun 21, 2017
45 Drives claims the "lowest cost per Hard Drive Slot in the industry." But who or what is '45 Drives'? What started as a product design to...
No Hack, Still Liable, Court Finds ADT on Jun 20, 2017
Recently, ADT has been in the news for a $16 million settlement for a cyber security vulnerability class action suit. One of the most important...
Resolver / PPM 2000 Incident Management Platform Profile on Jun 20, 2017
You might have seen the company whose employees wear hockey jerseys at trade shows and wondered "what do they do?" PPM 2000 has been active in...

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