Реклама Google — средство выживания форумов :)
И не уходило по несколько минут на одну фотографию, а меньше секунды - один ТВ кадр, который тут же записывался бы на магнитную ленту.
> Как снимали лунную аферу... [White Cat#09.11.19 22:19]
RBV imaged an entire ground scene (frame) instantaneously thereby providing a greater cartographic fidelity than MSS. The viewed ground scene, 185 by 185 km in size (80 m resolution), was stored on the photosensitive surface of the camera tube, and, after shuttering, the image was scanned by an electron beam to produce a video signal output. Each camera was read out sequentially, requiring about 3.5 s for each of the spectral images.
> Landsat-1 to 3 - eoPortal Directory - Satellite Missions
The data stream received from the satellite was analog-to-digital preprocessed to correct for radiometric and geometric errors.
> USGS EROS Archive - Landsat Legacy - Return Beam Vidicon (RBV) Film Only