Mounting a filter
Logitech C920 comes with IR low pass filter installed. Without this filter camera becomes sensitive to Infrared light. In order to maintain the same functionality you should install filter with same specifications. If you wish to use camera for night vision purposes, leave it as is – don’t install any filter. In some other cases you might want to see only Infrared light. In this case install another filter. To install filter stick few strips of double sided adhesive tape and drop filter inside.