Phrases related to: optical lens

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do something with mirrors	To insinuate one has performed a magic or optical trick with the use of hidden mirrors, insinuating trickery and sham.	Rate it: (2.00 / 1 vote)
do with mirrors	To perform a magic or optical trick with the use of hidden mirrors, implying trickery and sham.	Rate it: (0.00 / 0 votes)
OSETI	Acronym of optical search for extraterrestrial intelligence. It is SETI using visible light instead of traditional radio waves.	Rate it: (0.00 / 0 votes)
SLR	single-lens reflex camera	Rate it: (0.00 / 0 votes)
stop down	To decrease the aperture of a photographic lens, moving from an f/stop represented by a lower number to an f/stop represented by a higher number.	Rate it: (0.00 / 0 votes)
stop up	To increase the aperture of a photographic lens, moving from an f/stop represented by a higher number to an f/stop represented by a lower number and causing more light to pass into the camera.	Rate it: (2.33 / 3 votes)
zoom in	To focus a zoom lens in order to obtain a larger image, or a closer view.	Rate it: (5.00 / 2 votes)
zoom out	To focus a zoom lens in order to obtain a smaller image, or a more distant view.	Rate it: (5.00 / 1 vote)