The magnification of a lens is also known as which of the following?
Digital zoom
Focal length**
Aperture
Shutter speed
The magnification of a lens is not referred to as "Digital zoom," "Aperture," or "Shutter speed." The correct answer is "Focal length." To understand why, let's go through each option:
1. Digital zoom: Digital zoom refers to a feature found in digital cameras or smartphone cameras that allows you to zoom in on a subject by cropping the image and enlarging it digitally. It does not have a direct connection to the magnification of a lens.
2. Aperture: Aperture refers to the opening of a lens that determines the amount of light reaching the camera sensor. It affects factors such as depth of field and exposure, but it is not directly related to lens magnification.
3. Shutter speed: Shutter speed refers to the length of time that the camera's shutter remains open, determining the length of time light is allowed to reach the camera sensor. Similar to aperture, it influences exposure and the movement of subjects captured in the image, but does not directly relate to lens magnification.
4. Focal length: Focal length is the distance between the lens and the camera's image sensor when the subject is in focus. It is commonly represented in millimeters. The focal length directly affects the magnification of a lens. Shorter focal lengths result in a wider field of view and less magnification, while longer focal lengths result in a narrower field of view and higher magnification.
Therefore, the correct answer is "Focal length" when it comes to the magnification of a lens.