Infinity focus.
A lens capable of focussing on infinity can achieve infinity focus. Sometimes lenses can’t do this. For example, a lens mounted with an extension tube or some other close-focussing adapter may no longer be able to attain infinity focus. A lens with a lens register very different from the camera to which it is attached may also be unable to achieve infinity focus.
Entry last updated 2002-04-03. Term 642 of 1487.
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