Double Scan, Worse Lux Specifications?

[vmgtlexi 0]

I am looking at a few true day/night cameras. Some have "double scan CCD's".

 

I put together a spreadsheet using manufacturer specs, and it looks like the "double scan" cameras tend to have marginally worse lux ratings.

 

For example:

 

The Samsung SCV-3120 (which is a double scan CCD) has color Lux rating of .7 and B&W lux of .07.

 

By comparison other NON-double-scan cameras have better (lower) lux ratings (such as .1 for color and .01 for B&W).

 

QUESTION: For ideal low-light use, should I disregard "double-scan" in FAVOR OF better (ie, lower) lux ratings in night time B&W?

[Birdman Adam 0]

Well, the question is do you need the WDR function? Because double-scan is used to give the camera a 'wide dynamic range' (headlights don't blind it, etc).

 

So if you don't NEED the WDR function, then it makes perfect sense to NOT use double-scan cameras, and get that slightly better low-light function.

[vmgtlexi 0]

Thank you. That makes good sense to me.

[rory 0]

I wouldnt even use it for headlights, doesnt seem like it can handle that any better than regular or no BLC. WDR is only for certain applications, like pointing it at a door from inside, but only if you need to see outside and inside clearly, and even then modern BLC tends to work for that scenario also and even better in some cases. And you are right, double scan WDR means less sensitivity, video can look like it is digitally enhanced, overall a waste of money IMO.