An curved arrow pointing right. The lens on your camera can affect how you appear in photos. Follow BI Video: On Twitter More from Tech The lens on your camera can affect how you appear in photos.

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

Focal dystonia is a neurological disorder involving involuntary spasms and cramping in muscles, such as the hands and fingers. It can result from overuse and tends to affect musicians, golfers ...

You can use this effect artistically to blur out distracting ... The distance between the principal focal point and the lens is the focal length. So a 14mm lens bends light so it converges 14mm ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...