You can have the best camera for beginners, but if you don't truly understand focal length, you'll struggle to pick the right ...

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.

I think camera shake is the number one problem that plagues beginner and intermediate photographers. But is the reciprocal ...

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 ...