American Society of Cinematographers (ASC) (www.theasc.com)
Eastman Kodak Company, “More on 'Telephoto Lenses' Depth of Field,” (www.kodak.com)
Hall, Conrad L., Visions of Light: The Art of Cinematography (Los Angeles: Image Entertainment, 1993)
Johnson, Bruce A., “Camera Accessories,” Digital Video Magazine, April 2002 (www.dv.com)
Kapoor, Dave, “Filters for Digital Cameras,” Spectra Cine, Inc., “Determining the ASA/ISO Rating or Exposure Index of a Video Camera” (http://spectracine.com/determiningtheexposureindexo.htm)
P+S Technik [cinema lens adapters] (www.pstechnik.de)
Reichman, Michael, “The Luminous Landscape: The Understanding Series” ...