If you need this item you will only find it here. This is a replacement screw in IR filter for using the Brinno BCS optional lenses with the Brinno TLC 200 Pro camera. The BCS lenses come with this filter, occasionally they get lost or damaged. Without the filter your video colors will be off.
The filter will also work with other CS mount lenses if you have a specialty application.
We realize the price is up there, but this is a very specialty item with low sales volume. It's precision stamped aluminum with IR glass.