Varifocal vs Fixed Focal Lens
Author: John Honovich, Published on May 29, 2014
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
Competing Against ADT
on Jul 20, 2017
ADT is one of the biggest players in the security industry, with ~$4 billion revenue. In 2017, they were acquired / merged with Protection...
Axis Door Station Tested (A8105-E)
on Jul 19, 2017
Axis continues their push into niche markets, especially audio, with network speakers, an IP horn, and video door stations.
We bought and tested...
Manufacturer Favorability Guide
on Jul 19, 2017
This 120 page PDF guide may be downloaded inside by all IPVM members.
It covers our 20 manufacturer favorability rankings and 20 manufacturer...
$8 Billion Utility Georgia Power Enters Surveillance Business Offering Avigilon And Genetec
on Jul 19, 2017
Utilities are typically considered major customers of surveillance integrators but one utility, Georgia Power, with $8+ billion in annual revenue...
Hikvision Distributor Says Hikvision "Top Rated Yet Most Hated"
on Jul 12, 2017
The CEO of 2M Solutions, a distributor selling Hikvision cameras under their own as well as Hikvision's brand has publicly declared Hikvision to be...
Convergint Total Recall CrimeEye Product Profile
on Jul 11, 2017
Deploying video surveillance in metropolitan areas often brings challenges, including lack of infrastructure or excessive costs to extend...
Security Trade Magazine Readership Statistics
on Jul 10, 2017
150 IPVM members reported how many and what security trade magazines they read, both in print and online.
Here are the key findings:
Most do...
Best Manufacturer Perks
on Jul 07, 2017
A decade ago, the best manufacturer perk was likely a trip on the Pelco jet:
But the Pelco jet is long, long, long gone.
What types of perks...
Hikvision USA Hires VP of Business Development
on Jul 05, 2017
Hikvision USA is expanding again, this time in its drive to move up market to larger integrators and end users.
In this note, we analyze...
PTZ Usage Declines 2017 - Statistics
on Jul 03, 2017
PTZ usage is declining, now at ~6% of all cameras integrator use, down from ~10% of cameras used in 2014, according to new IPVM...
Most Recent Industry Reports
Competing Against ADT
on Jul 20, 2017
ADT is one of the biggest players in the security industry, with ~$4 billion revenue. In 2017, they were acquired / merged with Protection...
Hikvision Launching Deep Learning Recorders
on Jul 20, 2017
Hikvision has become a common choice for super low cost NVRs.
Now, Hikvision is aiming to move up market, with deep learning NVRs that claim far...
PR Campaign Exploiting Manufacturer Cybersecurity
on Jul 20, 2017
Manufacturers increasingly have a bulls-eye on their back.
As cyber security solutions providers grow, they realize a great way to get publicity...
Axis Door Station Tested (A8105-E)
on Jul 19, 2017
Axis continues their push into niche markets, especially audio, with network speakers, an IP horn, and video door stations.
We bought and tested...
Manufacturer Favorability Guide
on Jul 19, 2017
This 120 page PDF guide may be downloaded inside by all IPVM members.
It covers our 20 manufacturer favorability rankings and 20 manufacturer...
$8 Billion Utility Georgia Power Enters Surveillance Business Offering Avigilon And Genetec
on Jul 19, 2017
Utilities are typically considered major customers of surveillance integrators but one utility, Georgia Power, with $8+ billion in annual revenue...
Knightscope Laughs off Robot Drowning
on Jul 18, 2017
A day after a Knightscope robot drowned, Knightscope has issued an 'official statement' making fun of the issue:
The implied message is that...
Microsoft Video AI Cloud Services Examined
on Jul 18, 2017
Microsoft has released one of the most amazing video analytics marketing videos ever. In it, they detect oil spills, track individual people giving...
Hikvision USA Head of Cybersecurity Exits
on Jul 18, 2017
Hikvision USA's Head of Cybersecurity has exited the company.
In this note, we review the move, share Hikvision's feedback and examine the...
'Suicidal' Knightscope Robot Drowns
on Jul 17, 2017
Knightscope continues its hyper growth, at least when it comes to controversy, this time with a 'suicidal' robot in Washington DC.
And here is...
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.
Comments (8)
Rukmini Wilson
** ** * **** ****varifocal ****** have ****** *-***** generally than their fixed lens counterparts, and that the difference is exacerbated as you move the varifocal towards the high range of its the focal length?
Create New Topic
Paul Galburt
** *** ***** ** ***********, ***** ***** ****** ****** (***** called ***** ******) ***** * *********** ******* ****** **** ****-***** (zoom) ******, *** ********* **** * ******* ********* "*" ****** meaning **** ***** *********.
******* *** ******* ** ******** ******* *** ** *****, ***** F ****** *** ********** ****** ** ******* **** **** ************ camera ******. ****, ***** * ******* **** ********* ***** ** field (***). ******* *** ** ***** ****** ** *********** ** it ******** *** **** ******* **** *** **********. **** ** almost ****** * **** ******** ** ********.
****, ***** *** * ******* *** **** *** ***-***** ***********, most ******** ******* *** ***** ***** ** ******* ***-***** ***********.
**, *************, *** ***** ******** **** ** *** ***** ********** is ****** *** ******* ** *** ****** ** * ************ lens.
Create New Topic