WIDE-ANGLE LENSES
Wide-angle lenses have short focal lengths, so generally any model with a number less than 35mm is considered one. The shorter the focal length, the wider the field-of-view. So at 35mm, this could be 60˚, while at 20mm, it maybe be something like 90˚. Get below 20mm and you’re into the realm of ultra-wide lenses, so a 14mm lens could give you a huge 120˚.
Remember, though, that lenses give a narrower view on a cropped sensor, which is why wide-angles designed for smaller sensors have shorter focal lengths than full-frame models.
Most wide-angle lenses are used for landscape, interior and architectural views, so very wide apertures aren’t vital, but if you want to work in low light, try to find a ‘fast’ version.
Watch light and framing…
