The lens in a camera is like an eye that lets light into the camera body and focuses it on the sensor, where the image is recorded. The larger the optical components (known as ‘elements’) in the lens, ...

I’ve been teaching quite a few photography courses over the last couple of years. I have instructed a KU course in photojournalism and I continue to teach a series of photography classes for the Osher ...

Although vision correction is the main reason that contact lenses are worn, contacts can also be worn for cosmetic reasons; to change eye colour, as part of a costume, or even to sharpen the vision of ...

The lens you get when you buy a DSLR—generally a standard 18-55mm zoom, or something like it—is designed for some level of versatility but not much beyond that. It doesn't capture particularly sharp ...