A lens focuses light onto the sensor of a digital camera and is critical to photography. To help you make an informed choice when buying or mounting an optic, we explain some of the most important ...

Back in the days of yesteryear, when I bought my first single-len reflex, cameras came with single-focal-length lenses. Usually you started out with a lens of about 50 millimeters, because that was ...

Perspective in an image is all about the relationships between objects in the scene; specifically their relative sizes and positions … Perspective in an image is all about the relationships between ...

How to select the best focal length; Why wide-angle lenses?; Zoom or Prime?; Telephoto lenses; Focal length analysis; All the information you need to select the right lens for landscapes. A focal ...

We may receive a commission on purchases made from links. Whether you're a serious enthusiast or a professional photographer, removable-lens cameras have been the tool of choice for the better part of ...

If you're getting started with portrait photography, one of the biggest questions is: what lens should I use for portraits? With the best portrait lenses coming in so many options – from affordable ...

Goyo Optical announces the launch of its New Focal Length Calculator. This web tool, available on GoyoLenses.com, allows users to quickly and easily calculate the most effective lens focal length for ...

Both varifocal and zoom lenses are built with movable elements for adjusting the focal length. These lenses provide a flexible solution to applications that previously would have required multiple ...