Fail: Dahua "Didn't Check The Lux Levels but It Was Dark"Author: John Honovich, Published on Jul 20, 2018
Dahua UK has been promoting their camera quality on LinkedIn:
Dahua UK's response: "didn’t check the lux levels but it was dark," later noting "it was 2300 with a couple of streetlights in the distance."
It is embarrassing that Dahua, a company that claims 6,000 engineers and to be #2 globally, cannot understand the importance of knowing the lux level.
Why Knowing Lux Level Is Important
Here's why it is important: The word 'dark' is commonly applied to scenes varying from 5 lux down to .001 lux or lower. 'Dark' is subjective. A scene that is 1 lux and a scene that is 0.1 lux are both 'dark' but it is far harder to produce quality images the lower the lux level is.
Moreover, comparing a camera in a 'dark' 1 lux scene to another camera, at another time, in another place, in a 'dark' 0.1 lux scene will result in an erroneous judgment.
As, an example, from our 5MP / 6MP shootout, note how we clearly label what the lux level of the test scene is and test them all in the same scene with the same lighting:
Salespeople like taking a one-off picture of their cameras 'in the dark' to brag about how good it is, but without any context of the light level or comparison to others, even a bad camera can be promoted as being superior.
In fairness to Dahua, this is not their worst marketing of the summer. Their embarrassing IFSEC AI demonstration is still clearly tops.
Most Recent Industry Reports
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.