Although you’d want high levels of DNR there are some negative effects when you take these settings to the max. You may find that there is a blur when there is movement in the image, this is similar to the blur that’s created by a slow shutter speed.
WHAT TYPES OF DIGITAL NOISE REDUCTION ARE THERE?
The two main types of DNR are 2D & 3D. With 2D – the technology processes each individual frame individually, whereas 3D DNR processes across a series of frames over time.
HOW DO I CHANGE THE DNR OF MY CAMERA?
It couldn’t be easier! Simply navigate your way through your UNV system with the following settings:
Setup > Camera > Image > Here you can change Digital Noise Reduction from 0 to 255
Across the UNV range, you will find that 3D DNR is used, meaning you get the best possible Digital Noise Reduction available
Check out the range here