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Apollo 7 slow-scan TV, transmitted by the RCA command module TV camera. NASA decided on initial specifications for TV on the Apollo command module (CM) in 1962. [2] [ Note 1] Both analog and digital transmission techniques were studied, but the early digital systems still used more bandwidth than an analog approach: 20 MHz for the digital system, compared to 500 kHz for the analog system. [2]
Apollo TV camera; Hasselblad "Electric Camera" (modified 500 EL) with 70 mm film; Maurer Data Acquisition Camera (DAC) with 16 mm film; Nikon F with 35 mm film; Mapping (Metric) Camera (7.6 cm focal length) with 127 mm film, on Apollo 15, 16, and 17 (see Sherman Fairchild#Lunar photography) [1]
The camera is initially pointed at a target and then locked on, allowing the missile to fly to its target by keeping the image stable within the camera's field of view. The first production missile to use a contrast seeker was the AGM-65 Maverick , which began development in the 1960s and entered service in 1972.
Horizontal scan rate, or horizontal frequency, usually expressed in kilohertz, is the number of times per second that a raster-scan video system transmits or displays a complete horizontal line, as opposed to vertical scan rate, the number of times per second that an entire screenful of image data is transmitted or displayed.
The Far Ultraviolet Camera/Spectrograph (UVC) was one of the experiments deployed on the lunar surface by the Apollo 16 astronauts. It consisted of a telescope and camera that obtained astronomical images and spectra in the far ultraviolet region of the electromagnetic spectrum .
The photography market boom coincided with a sudden flourish in the tourism industry after the end of the 30-year war in Sri Lanka. During the period, CameraLK achieved a 100% sales profit. [4] In late 2011, when cameras became a tax-free commodity, the company expanded itself. [12] The company captured 65-70% of the total market share.
Apollo 15 was the first of the Apollo program's "J" Missions [2] which used an enhanced Lunar Module that was capable of supporting a 3-day stay on the lunar surface *and* the delivery of the Lunar Roving Vehicle (LRV or "Rover") to the surface to allow the crew to extend the range of their exploration and to provide remote TV coverage.
A line-scan camera is a system for producing two-dimensional images using a single sensor element. They normally consist of a rapidly rotating mirror or prism placed in front of the sensor to provide scanning in one direction while the movement of the recording material, often photographic film , provides scanning in the second direction.