The advantage of interchangeable lens cameras like DSLRs and mirrorless cameras is that you can change lenses for different kinds of photography. There are many different types of lenses, often with specific names. Lenses are usually characterised or grouped by their focal length. It might be more useful to use their angle of view instead, […]
Ultra-wideangle
A lens with an even wider angle of view than a regular wideangle lens. In terms of focal length, these are typically 20mm or shorter. In addition to an ultra-wide angle of view, these lenses also produce strong perspective effects.