_This image was shot on a APS-C -sensor at a focal length of 35mm. _ 1 Normal is Relative The main job of a lens is to concentrate (focus) light rays so the film or digital sensor can record the scene ...

Camera lenses that carry a range of focal lengths (for example, 18-200mm) can go from telephoto to wide-angle, so are considered zoom lenses. Perspective ...

Choose a lens shorter than the normal and you are deliberately choosing to expand the space, to make things grander, to enhance perspective and push planes apart. Select a lens longer than the normal ...

For example, a 50mm lens on a full-frame camera gives a normal view, but on an APS-C camera it offers a more zoomed-in view, equivalent to the one a 75mm lens would give on full-frame.

Alternatives to the cheap f/1.8 lens are an even faster one, f/1.4 ($300 to $500), or a 30mm or 35mm that gives entry-level cameras more of a “normal”—what your eye can see—perspective.

Nikon's PC-E Micro-Nikkor 45mm f/2.8D ED Stephen Shankland/CNET Networks LAS VEGAS--Nikon just introduced a 24mm "perspective correction" lens, but the camera maker also showed off two new ...