Long-throw lens
A telephoto lens (throw ratio of roughly 3:1 or more) for projecting from far away.
Long-throw lenses let you project onto a facade from across a square or river, at the cost of some brightness.
Related terms
- Throw ratioDistance from the lens to the image divided by the image width.
- Zoom lensA lens with an adjustable throw ratio range.
Put it into practice: throw-distance calculator · lumens calculator · intro to projection mapping