Chris J. Condon (1923 – December 19, 2010), born Christo Dimitri Koudounis, was the inventor of 3D lens used by his company StereoVision, a cinematographer, and founder of Sierra Pacific Airlines.

He was born in North Chicago, Illinois. During World War II, he received four Bronze Battle Stars while working as combat crew and as a cinematographer on B-24 and A-26 aircraft in the Pacific.^[1] Upon his death in 2010, he was buried at Riverside National Cemetery in Riverside, California.

After the war, he worked at Douglas Aircraft as a trainee before starting his own business in 1947, Century Precision Optics Company of North Hollywood, California. With the company, he developed the Tele-Athenar telephoto lens which was used by Walt Disney photographers in the True Life Adventures series.^[1]

In 1953, he received his first patent for a 3D projection system.^[1] The system replaced the previous method of using two cameras. His invention was inspired by the film House of Wax.^[2]

He taught at Columbia College Hollywood from 1958 to 1960.^[1]

He co-wrote the American Cinematographer Manual for the American Society of Cinematographers with Joseph V. Mascelli in 1963.^[1]

In 1969, he and his partner Allan Silliphant received a patent for the world's first single-camera 3-D motion picture lens and formed the company Magnavision, which later became StereoVision Entertainment. After the success of soft X, eventually the 3D movie The Stewardesses was R rated.

In 1970, he and Silliphant founded Trans Sierra Airlines, later known as Sierra Pacific Airlines.^[1] The airline continued to operate under several newer owners with a fleet of Convair prop-jets and Boeing 737 jets.

In 1972, he received a patent for a special widescreen 3-D camera lens for modern 35mm and 70mm reflex motion picture cameras.^[1]

During the 1970s, his lenses were used in Andy Warhol's Frankenstein, Dynasty, and Fantastic Invasion of Planet Earth.^[1]

• The Stewardesses (filmed in Stereovision 3D) (1969)
• The Volcano Creature (co-producer)
• The CIA Girls of Capitol Hill (co-producer)
• Mr. Howard's Crazy Airline (co-producer)
• The Wild Ride (co-producer and director of 3D photography)
• The Volcano Creature and Surfer Girls (co-producer and director of 3D photography)
• Magda The Gypsy Fortune Teller co-produced with Gary Tomsic and Herb Liteman (filmed in Stereovision 3D) (1999)
• Jaws 3-D (Cinematographer and Chief 3-D Consultant) 1983^[3]