13-08-2020, 02:42 PM
They used film cameras and in satellite processing and film scanning in spy satellites. Earlier ones ejected the film which might then get lost or captured. The plot of Ice Station Zebra isn't entirely fictional. A satellite spy film was lost over northern Norway.
Miniaturisation is amazing now, with micro mirrors in DLP (including mechanical sequential colour on the cheaper ones!) and the mechanical 300 dpi display used in eink based ereaders such as the Kindle, Kobo, Nook and a couple of others. Sony had the first one and now only sell "Digital Paper" rather than ereaders.
Baird's intermediate film camera was the best technology they did and survived at least another thirty years in revised form.
Miniaturisation is amazing now, with micro mirrors in DLP (including mechanical sequential colour on the cheaper ones!) and the mechanical 300 dpi display used in eink based ereaders such as the Kindle, Kobo, Nook and a couple of others. Sony had the first one and now only sell "Digital Paper" rather than ereaders.
Baird's intermediate film camera was the best technology they did and survived at least another thirty years in revised form.
