DS-2CD2347G2 Very low frame rate at night?

[mba1980]

I have 2 x DS-2CD2347G2 colorvu, 1 in 2.8mm and the other 4mm. Im noticing that at night the fps drops to around 3-4fps.

I am using QVRPro as a NVR from QNAP, recordings during the day remain around the 20-25fps i have the cameras set at, but as the night comes the fps drops

I do not use tghe inbuilt light as the ambient light on the street gives a good image, it just gives a poor fps

 

[cymruchris]

Check what your 'slowest' shutter speed is set to. If it's too long - you'll only get a few frames per second - however shortening it will likely result in a poorer image as less light will reach the sensor. It's a bit trial and error - I like to keep the slowest speed to around 1/100 if I can get away with it - as the slower the shutter the blurrier the image when movement occurs. (Static shots of a street can look lovely until someone walks past in a blur)

 

[mba1980]

Check what your 'slowest' shutter speed is set to. If it's too long - you'll only get a few frames per second - however shortening it will likely result in a poorer image as less light will reach the sensor. It's a bit trial and error - I like to keep the slowest speed to around 1/100 if I can get away with it - as the slower the shutter the blurrier the image when movement occurs. (Static shots of a street can look lovely until someone walks past in a blur)

Perfect!

I had the shutter at 1/3 because like you said it gives a nice static image.

1/25 i get 20 fps
1/12 i get 12
1/6 i get 6
1/3 i get 3

Easy when you realise *bang head*