Speedbooster

Noun

Definitions

1.NounA secondary lens mounted between the camera and a photographic lens so as to reduce the central part of an image obtained by the objective lens while concentrating the light rays on a smaller area.

2.NounSomething that boosts speed.

Synonyms

teleconverter superzoom speedlight speed spot lens stroboscope photoenlarger speedlamp zoom lens diopter focimeter photoamplifier

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