Uploaded March 2015 | Updated September 2026, 5 hours ago
HDTV (high definition television) is the new standard in television technology which provides wide-screen picture quality similar to 35mm film along with compact disc (CD) sound quality.
HDTV is part of several standards incorporated in digital television or DTV. Basically, DTV is composed of three separate standards:
HDTV 1080 (1080 lines of resolution, 16:9 aspect ratio)
HDTV 720 (720 lines of resolution, 16:9 aspect ratio)
SDTV (480 lines of resolution, 16:9 or 4:3 aspect ratio)
Focus PLane, because focus depends on the distance between lens and the sensor or film plane, focus in the space in front of the camera is not on a point but rather on a plane parallel to the film plane.
Depth of Field is the amount of your image before and beyond your focus point that will be in focus.
HDTV (high definition television) is the new standard in television technology which provides wide-screen picture quality similar to 35mm film along with compact disc (CD) sound quality.
HDTV is part of several standards incorporated in digital television or DTV. Basically, DTV is composed of three separate standards:
HDTV 1080 (1080 lines of resolution, 16:9 aspect ratio)
HDTV 720 (720 lines of resolution, 16:9 aspect ratio)
SDTV (480 lines of resolution, 16:9 or 4:3 aspect ratio)
Focus PLane, because focus depends on the distance between lens and the sensor or film plane, focus in the space in front of the camera is not on a point but rather on a plane parallel to the film plane.
Depth of Field is the amount of your image before and beyond your focus point that will be in focus.
