The phrase "additional lens" is correct and usable in written English.
It can be used when referring to an extra perspective or viewpoint on a subject or issue.
Example: "To fully understand the situation, we need to consider it through an additional lens of cultural context."
Alternatives: "extra perspective" or "supplementary viewpoint".
It was, he says, 'like an additional lens in my camera, which wasn't Zeiss, it was Freud'.
Most older people require an additional lens for reading, which can be incorporated with the distance correction in the form of a bifocal lens.
Moreover, the people at Optical 88, unlike many retailers (I'm talking to you, LensCrafters), did not turn used-car-salesman-y when discussing additional lens finishes available for extra cost.
That additional lens doesn't have the variable aperture feature, however, so it's not going to be able to let in as much light in darker shooting situations.
The liquid acts as an additional lens, narrowing the beam of light just as a telescope turns what looks to the naked eye like a smudge on the horizon into a crisp image.
However Looxcie's consumer exit does suggest that getting mainstream smartphone users to want to become human camcorders by clipping on an additional lens isn't the easiest sell in town.
To John's astonishment, "She produced a Leica M3, circa 1957, in immaculate condition, with two or three additional lenses.
Plus additional lenses, tripods, cable releases etc. you wish to learn how to use properly, plus any pens/paper for note taking.
He then ruled gratings on spherical concave surfaces, thus eliminating the need for additional lenses and mirrors in spectrometers, and used them to develop exact spectrometry.
Although a prism or grating is the essential dispersing element in a spectrograph, a fine slit and additional lenses or focussing mirrors must be used to form a sharply defined spectrum.
The Inverse 200 AW has a contoured mesh belt, holds one body with a lens attached, as well as 2 additional lenses and a flash.
