Wide-Angle Lenses are lenses with a shorter focal length than a standard lens. They allow you to capture a larger field of view than a standard lens, making them useful for landscape photography, architecture, and interiors. Wide-angle lenses come in different focal lengths, ranging from ultra-wide lenses with a focal length of around 10-20mm, to wide lenses with a focal length of around 24mm. They are typically characterized by their angle of view, which is expressed in degrees or millimeters. One of the key characteristics of wide-angle lenses is their distortion. Because they capture such a wide field of view, they can produce a "fisheye" effect where straight lines appear to curve. This effect can be minimized or exaggerated depending on the specific lens and how it's used. When using a wide-angle lens, it's important to be aware of your composition and how it's affected by the lens. Elements in the foreground can appear larger than they actually are, while elements in the background can appear smaller. This can be used creatively to add depth and interest to your images.