Therin of Andor wrote:
Actually there was some discussion of Barbara Babcock's closeups and the old Vaseline-on-the-lens trick - the women of TOS often were shot in very soft focus - but that sounded a bit... naughty.
To be more technically accurate, I learned once (from Metryq in fact) that women's close-ups on Star Trek
were not really done in "soft focus." The camera was focused sharply but a diffusion filter was put in front of the lens:
Director of Photography Jerry Finnerman would go on to use exactly the same technique for Cybill Shepherd on Moonlighting
in the 1980s.