Jump to content

Retrofit lens to cctv camera to reduce the FOV?

Recommended Posts

I have a CCTV surveillance system of 12 cameras. The cameras that look at wide driveways and flat yards and fields work great at night.

However 2 cameras look down paths (used by coyotes) with high bushes along each side. Regardless of where I place these cameras, the IR light is always too bright on the bushes which swamps out the view along the path.  It seems that if I had a camera with a narrow field-of-view then the bushes wouldn't be in the picture and I could see the path. Is it possible to just add a simple (cheap) lens to narrow the FOV? If so, any suggestions would be appreciated.

Or Is there any material I could use to mask off the IR beam along the edges without lighting up? I was thinking of putting tape along the sides of the camera to block IR light to the bushes but I think the tape would light up even more than the bushes. Unless maybe there is a material that refracts IR wavelengths out of the FOV without reflecting it back into the FOV of the camera.

My system uses Q-See cameras and DVR.


Share this post

Link to post
Share on other sites

Hi. Once a lens has been remover and replaced most of the time it gives problems.

white out and been discussed lots of times. We had a post about 4 years ago and the solution I used to use might help you.  

If you get a black marker pen and start to mark 1 led at a time ..... don’t mark it till full black just give the leds one swip of the marker pen ..... it does take time but you will start to see a big difference 

if still a bit bright just give the same leds another swip of the black marker.

i would start with outer led ring ...left side.

some will say just use electrical tape but that blocks the led working ..... black marker just reduces the intensity 

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now