So we need remedial classes? Yeh as I just posted in the previous post how that works, Thats a real problem since again a blob is impossible mid day LOL You dont understand how cams work even after I went though all the trouble to post a picture demonstration for you? Hughes, Raytheon, and Goodrich purchase Litton downsized dramatically in the 1990s, selling off many of its components. In 1996 Hughes Electronics purchased what was then left of Itek, Itek Optical Systems. At the time they announced that Itek's own facilities in Lexington, Massachusetts would fold into their own Hughes Danbury Optical Systems in Danbury, CT. Later in the 1990s, after Raytheon's purchase of Hughes, Itek became Raytheon Optical Systems Company. In early 2000, Raytheon divested the Optical Systems group and it was purchased by Goodrich Corporation. Goodrich Corporation was subsequently purchased by United Technologies Corporation headquartered in East Hartford, Connecticut. https://en.wikipedia.org/wiki/Itek the pic tells you how to adjust your cam for variable light. It does not matter if its a litton or phillips or nikon.