Testing: GBO InfinityLens Lenses

Author: Benros Emata, Published on Sep 29, 2010

Ensuring surveilled objects are in focus is a common concern. In this report, we examine lenses claiming to offer a massive depth of field (MDOF), allowing objects in both the near and far fields to remain simultaneously in focus. This test evaluates GBO's InfinityLens lenses.

[Update 2012: GBO is out of business.]

Inside this report we'll reveal our findings based on side-by-side comparisons of the GBO InfinityLens lenses versus a commercially available lens.  We provide image captures to allow the viewer to participate in the evaluation.

Testing Methodology

Depth of Field Performance

We tested the 14.0mm, 30.4mm and 52.3mm manual iris GBO Infinity lenses against a commercially available 5-50mm auto-iris lens using the same 4CIF IP camera for each trial.

In the first trial of 14.0mm GBO lens vs. 5-50mm commercially available lens we adjust the focal length of the 5-50mm control lens so that the horizontal FoV is similar to the 14.0mm GBO lens' horizontal FoV.  We then adjust the manual iris so that light levels and aperture sizes are relatively equal.

We then set focus to license plate/person subjects at 20 feet (near) and capture images at the 20ft (near),  50ft (mid) and 100ft (rear) of the same license plate/person subjects. This procedure is done for both the GBO and commercial lens.

We repeat focusing at the 50ft (mid) and 100ft (rear) locations and then capture images at the 3 (near, mid, and rear) locations for these two focus points. This procedure is done for both the GBO and commercial lens.

We then repeated the same steps for the 30.4mm and 52.3mm lenses, with the following adjusted reference distances:

  • 30.4mm focal length lens test - near (25ft), mid (50ft), rear (100ft)
  • 52.3mm focal length lens test - near (100ft), mid (250ft), rear (450ft)

Low-light Performance

In our low-light tests we capture images of the 14mm GBO InfinityLens lens at a 1.0 Lux and 0.3 Lux level. We then repeat the procedure with a commercially available lens. We then compared the two lenses at each lux level for differences in image quality.

Related Lens Reports

Compare to our test results of Theia Technologies who claim to provide a much wider FoV and eliminatinon of barrel distortion typical of fish eye lenses . Also, check out this training report: Using Lens Calculators to further your knowledge about lenses.

******** ********** ******* *** ** ***** ** * ****** *******. In **** ******, ** ******* ****** ******** ** ***** * massive ***** ** ***** (****), ******** ******* ** **** *** near *** *** ****** ** ****** ************** ** *****. **** test ************'* ************ ******.

[****** ****: *** ** *** ** ********.]

****** **** ****** **'** ****** *** ******** ***** ** ****-**-**** comparisons ** *** *** ************ ****** ****** * ************ ********* lens.  ** ******* ***** ******** ** ***** *** ****** ** participate ** *** **********.

Testing ***********

***** ** ***** ***********

** ****** *** **.***, **.*** *** **.*** ****** **** *** Infinity ****** ******* * ************ ********* *-**** ****-**** **** ***** the **** **** ** ****** *** **** *****.

** *** ***** ***** ** **.*** *** **** **. *-**** commercially ********* **** ** ****** *** ***** ****** ** *** 5-50mm ******* **** ** **** *** ********** *** ** ******* to *** **.*** *** ****' ********** ***.  ** **** ****** the ****** **** ** **** ***** ****** *** ******** ***** are ********** *****.

** **** *** ***** ** ******* *****/****** ******** ** ** feet (****) *** ******* ****** ** *** **** (****),  **** (mid) *** ***** (****) ** *** **** ******* *****/****** ********. This ********* ** **** *** **** *** *** *** ********** lens.

** ****** ******** ** *** **** (***) *** ***** (****) locations *** **** ******* ****** ** *** * (****, ***, and ****) ********* *** ***** *** ***** ******. **** ********* is **** *** **** *** *** *** ********** ****.

** **** ******** *** **** ***** *** *** **.*** *** 52.3mm ******, **** *** ********* ******** ********* *********:

  • 30.4mm ***** ****** **** **** - near (25ft), mid (50ft), rear (100ft)
  • 52.3mm ***** ****** **** **** - near (100ft), mid (250ft), rear (450ft)

***-***** ***********

** *** ***-***** ***** ** ******* ****** ** *** **** GBO ************ **** ** * *.* *** *** *.* *** level. ** **** ****** *** ********* **** * ************ ********* lens. ** **** ******** *** *** ****** ** **** *** level *** *********** ** ***** *******.

Related **** *******

******* ** *** **** ******* ******* *************** ***** ** ******* * **** ***** *** *** ************ of ****** ********** ******* ** **** *** ****** . ****, check *** **** ******** ******:***** **** ************* ******* **** ********* ***** ******.

[***************]

Product ********

*** ****** ******* (**) ****** ** ****** ** *** ************ series. ****** *** ********* ** ***** ***** ******* ** *.***, 5.5mm, *.***, **.***, **.***, **.***, **.***, *** **.***. ****** **** models *** ********* ** **** ***** ******. **** ***** ******* support ***** **** ******* ***** **** ** * **.*** ***** iris **** (**-**-***-*), * **.*** ****-**** **** (**-**-***-*), *** * 16.1mm ****-**** **** (**-**-***-*). *** ****** *** ******* ** ********** a ******* ****** **** ** */*". *** *.*** *** *.*** lenses *** ********* ** * ** *****, ***** *.*** ** 86mm ****** *** ********* ** * ***** ****** (****** ****** CS *************). ****, *** *.***, *.*** *** **.*** ***** ******* are ********* ** ** * ***** **** ** ****.

Key ********

*** ****** ******** ****** ** ****** ********** ************ ** ******** objects ********** *** ***** ** *****, ** *** ******** ** side-by-side ***** *********** **** * ************ ********* ****.

** *.* *** ****** *** *** **** ******** ** ****** a ******* ***** ******** ** *** ********** ****.  *******, **** the *** ***** *** ******* ** *.* *** *** *** lens ******** * ********/******* ***** ** ********** ** *** ********** lens.

***** ******** **** ******* ********** ********* *** ******** *** ******.

***************

***** *** * *** ********** ************* ** ***** *** *** InfinityLens ****** *** ******* ***** ************ ************. *******, *** ******** of *** *** ************ ****** **** ** **** ** $***. In ********, ********* (*********-****)** ***** ****-***** *.*** ** **.***, ******-**** **** ******* ** MSRP $***. ******* ****** ** ******** ** ******* (********)*-**** ** ***** ********* ****-**** ****, ***** *** ** **** of $***. ********, *** ************ ****** *** ***** ***** ******, and ** **** **** *** ***** *** ****** ******* *** focal ****** ** *** ***********. ******* ************ ** **** *** majority ** *** ************ **** *** ****** ****, *** *** be ** ***** ** *********** ***** ************.

*** *** ************ ****** *** ** **** *********** *** *********** niche ************ **** ** ******* ***** ***********. ** ************* ***** there *** **** * *** ******* ***** ******* ** ******** to **** ******** *** *******, *** ***** ********** ******* ******** less ***********.

*** ******* ** *** ********* ***** ** ***** ******** ** the *** ************ ****** *** **** ** **** ************* ******** in ************ ***** ********* ******* *** ************* ** ****** **** to *********** ****** ** ******* ****** ***** ****** ** ******* depths. 

Physical ******** *** **** *******

** **** **********, ** ******* * ******** ******** ** *** GBO ************ ******.  ** **** ******** ** ** *** **** any ** *** * ***** ***** ******, *** ** *** 16.1mm ******, *** * ****** ****** *** *** ***** *** brevity. *** ***** ****** ************ **********-** ** ***** *******. ** **** **** **** ******* ***** ******** ************* *** differences ******* *** *** *** ********** **** **** ** *** testing. *******, ** ******* *** ******* ** *** ***-***** ********** between *** *** *** ********** **** ***** * **** ******* range ***/***** ******. *** *** *** * ****** **** ** these**** ******** *********** ****.

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports on Lenses

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...
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...
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...
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...
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...
F-Stop Tutorial on Dec 16, 2016
To understand low light surveillance, appreciating the importance and role of the f-stop metric is critical. In this tutorial, we explain: Why...
Genetec Lower Cost Sharp V LPR Camera on Nov 23, 2016
Genetec has announced the latest offering in their AutoVu Sharp line, promising new features, simplified installation, and lower price. In this...
Testing EF Lenses On IP Camera on Nov 23, 2016
Glass. IP cameras are often characterized as using lower quality 'glass' and that those lenses reduce image quality. By contrast, Canon EF lenses...

Most Recent Industry Reports

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...
Dahua Forbes 'Next Web Crisis' Vulnerability Dispute on Nov 16, 2017
The buffer overflow vulnerability in Dahua products is not in dispute, in fact we covered it when it was first published. What is in dispute is...
Isonas Cofounders Split, Launch Partner/Competitor on Nov 16, 2017
Breaking up is hard to do, especially when door access security is at stake. But that is exactly what has happened at Isonas. Senior employees...
Hikvision China Criticizes The WSJ on Nov 15, 2017
Hikvision, through the Chinese government's authoritative news service, has criticized the WSJ investigation into Hikvision. In this...
PoE UPS Tested (Energy Reconnect) on Nov 15, 2017
In security, backup power is important, but most often requires UPS systems or extra cabling to devices for low voltage power. Now, some have...
Axis Commits To Long-Term Firmware Support on Nov 15, 2017
With the rise of cyber security awareness, and a general increase in hardware reliability, "software warranties" may prove more valuable than...
Hikvision NVR 4.0 Improvements Tested on Nov 14, 2017
Hikvision has released firmware version 4.0 for select NVRs, touting two years of research and development, and claiming "the new generation GUI...
Mobile Credentials (BLE / NFC / Apps) Guide on Nov 14, 2017
One of the biggest trends in access for the last few years has been the marriage of mobile phones and access cards. In this guide,...
Dahua Launches Electric Cars on Nov 13, 2017
Embattled mega video surveillance manufacturer Dahua is now electric car manufacturer Dahua. Let the jokes begin: But is the joke on Dahua's...

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