Zoom lens
Zoomlens · Lens & optics
A lens that lets you vary the focal length.
Lots of flexibility in one lens: the 24-70mm f/2.8 is a classic "walk-around" lens for professionals. Versatile but heavier, with a smaller maximum aperture than primes. Good zooms are expensive - cheap zooms sacrifice sharpness and light intake.
Tools that help with this: