The projecting lens covered the doorway, and such could be remotely controlled.
Hence many photographers decide to carry two zooms, instead of trying to get one lens to cover everything they shoot.
This lens covers the telephoto range from 300mm to the ultra-telephoto range up to 800mm.
The lens covers focal lengths from 35 to 70 millimeters, from slightly wide angle to slightly telephoto.
The lens covers for the headlights went from being glass (1998-99) to plastic (2000 onwards).
Silvered lenses covered half her face.
"Furthermore," the letter continued, "it appears that cameras may have been intentionally tampered with, lenses covered and lighting turned off in the facilities under monitoring."
These lenses can cover a variety of pixel sizes and display resolutions.
For 35mm format cameras, this lens covers a wide-angle range, and is well known as a photojournalists' lens.
Cameras such as Apple's older external iSight cameras include lens covers to thwart this.