I can’t express enough how grateful I am for the communication and service I received from Kolarivision. I was having trouble with an infrared camera,not being able to use channel swap and achieve the correct picture.After a week or so of emails and sending my pictures to kolarivision it was determined I didn’t have the correct filter installed.I shipped the camera to them on Wednesday and had it corrected and back by the following Wednesday.I would highly recommend them to ANYBODY! I am very pleased.Now I can enjoy my camera!