In-depth guides on camera sensors, pixels, and core hardware — from 200MP sensors and pixel binning to autofocus and image stabilization.
What Is a Tilt-Shift Lens? A tilt-shift lens is a specialist prime lens with two mechanical movements that ordinary lenses don't have. The front of the lens can tilt (angle relative to the sensor) and…
Every camera has a viewfinder, but not all viewfinders show you the same thing. A DSLR's optical viewfinder (OVF) shows the real world through glass, while a mirrorless camera's electronic viewfinder (EVF) shows a tiny,…
Press the shutter on two different cameras and you'll hear two very different sounds. One gives a crisp mechanical "clack" from deep inside the body; the other makes a soft, almost silent click from the…
Look closely at the front of almost any modern lens and you'll see faint green, purple, or magenta reflections dancing on the glass. Those colours aren't decoration — they're the visible proof of lens coatings,…
Manufacturers love to tell you a lens is “razor sharp,” but marketing words are cheap. When optical engineers want to show what a lens can actually resolve, they reach for a single graph: the MTF…
When a flash photo comes out too dark or too bright, the culprit is usually the flash mode. Modern flashes can expose automatically using a system called TTL (through-the-lens) metering, or you can take full…
Every digital camera you own is colorblind. The millions of light-sensitive pixels on a CMOS or CCD sensor measure only how much light hits them — never what color it is. The tiny invention that…
Teleconverters are among the most misunderstood accessories in photography. For the price of a small tube of glass, a 1.4x or 2x converter can turn a 70–200mm zoom into a 100–280mm or 140–400mm lens—dramatically more…
Until recently, a smartphone with a true optical zoom was almost impossible to build. The math is brutal: to magnify a scene 5x over the main camera, a lens needs a focal length of roughly…
Record a video on almost any camera and your footage is storing less color than you think. Behind the scenes, the file format quietly discards a big chunk of the color information — and in…