Noun
opticals
plural of optical
opticals pl (plural only)
(India) spectacles
Many technicians became freelancers or founded their own effects companies, sometimes specializing on particular techniques (opticals, animation, etc.). Source: Internet
I think the use of music effects, opticals and finally main titles are all part of telling the story. Source: Internet
The special visual effects work was divided up among seven FX divisions with motion control work by Dream Quest Images and computer graphics and opticals by ILM. Source: Internet