What does the mm on the camera lens mean?

The "mm" of the camera lens refers to the focal length of the camera. Focal length, that is, focal length, is a measurement method to measure the convergence or divergence of light in an optical system. Refers to the distance from the optical center of the lens to the focal point of light convergence when parallel light is incident. It is also the distance from the center of the lens to the imaging plane such as the backplane or CCD in the camera.

The mm above the camera lens is the focal length, and the definition of focal length: refers to the distance from the center of the lens to the focal plane, expressed by F, and the unit is mm. According to different focal lengths, the lens can be divided into wide-angle lens, standard lens and telephoto lens. Whether the lens can change the focal length can be divided into fixed-focus lens and zoom lens.

The mm number of SLR camera lens indicates the focal length of the lens, which refers to the distance from the main point to the focus after the lens is optically. This value determines the size of the object imaged on the film or CCD, which is equivalent to the ratio of the object to the image.

What does SLR lens mm mean?

SLR lens mm is the unit of lens focal length, and 30mm means that the focal length of the lens is 30mm. The longer the focal length of the lens, the closer the foreground can be pushed, which is equivalent to a telescope. The shorter the focal length, the farther the scene can be pushed.

MM is the focal length of the lens! ! Lens focal length refers to the distance from the main point to the focus after lens optics. The focal length of the lens determines the imaging size, depth of field and viewing angle.

The mm marked on the SLR lens is the length unit millimeter. The focal length of the lens is the distance from the optical center of the lens to the focal point after the parallel light passes through the lens. Other places also use millimeters, such as lens front filter interface, 58mm, 72mm and so on.

The mm of SLR lens is the numerical unit of lens focal length, and then the numerical unit of aperture size. I hope to adopt.

What does camera mm mean?

Mm represents the number of millimeters of the lens and is one of the basic parameters of the camera. Commonly used lenses are generally 6MM, 6MM, 8MM, 12MM, 16MM. Angle is inversely proportional to distance. The greater the angle, the closer the distance.

Camera mm is the number of millimeters representing the lens, which is one of the basic parameters of the camera. Camera, also known as computer camera, computer eye and electronic eye, is a kind of video input equipment, which is widely used in video conferencing, telemedicine, real-time monitoring and other fields.

Mm represents the number of millimeters of the lens and is one of the basic parameters of the camera. Commonly used lenses are generally 6mm, 6mm, 8mm12mm16mm. Angle is inversely proportional to distance. The greater the angle, the closer the distance.

What does the millimeter marked on the camera lens mean? How to understand?

1, the unit of lens marking is millimeter (mm), which refers to the focal length of this lens. Definition of focal length: refers to the distance from the center of the lens to the focal plane, expressed in f, in mm. The relationship between focal length and viewing angle: the focal length is inversely proportional to the viewing angle, and the larger the focal length, the smaller the viewing angle; The smaller the focal length, the larger the viewing angle.

2. Focal length is a measure of light convergence or divergence in an optical system, which refers to the distance from the center of the lens to the focus of light convergence. It is also the distance from the center of the lens to the imaging plane such as the backplane or CCD in the camera. An optical system with a short focal length has a better ability to collect light than an optical system with a long focal length.

3. The mm number of the SLR camera lens indicates the focal length of the lens, which refers to the distance from the main point to the focus after the lens is optical. This value determines the size of the object imaged on the film or CCD, which is equivalent to the ratio of the object to the image.

4.mm indicates the number of millimeters of the lens, which is one of the basic parameters of the camera. Commonly used lenses are generally 6MM, 6MM, 8MM, 12MM, 16MM. Angle is inversely proportional to distance. The greater the angle, the closer the distance.

What does the millimeter marked on the camera lens mean?

1, and the "mm" of the camera lens refers to the focal length of the camera. Focal length, that is, focal length, is a measurement method to measure the convergence or divergence of light in an optical system. Refers to the distance from the optical center of the lens to the focal point of light convergence when parallel light is incident. It is also the distance from the center of the lens to the imaging plane such as the backplane or CCD in the camera.

2. The unit of lens marking is millimeter (mm), which refers to the focal length of the lens. Definition of focal length: refers to the distance from the center of the lens to the focal plane, expressed in f, in mm. The relationship between focal length and viewing angle: the focal length is inversely proportional to the viewing angle, and the larger the focal length, the smaller the viewing angle; The smaller the focal length, the larger the viewing angle.

3. Focal length is a measure of light convergence or divergence in an optical system, which refers to the distance from the center of the lens to the focal point of light convergence. It is also the distance from the center of the lens to the imaging plane such as the backplane or CCD in the camera. An optical system with a short focal length has a better ability to collect light than an optical system with a long focal length.

4. The mm number of the SLR camera lens indicates the focal length of the lens, which refers to the distance from the main point to the focus after the lens is optical. This value determines the size of the object imaged on the film or CCD, which is equivalent to the ratio of the object to the image.

5. A few millimeters of a camera usually refers to the optical parameters of the lens focal length. Focal length is a measure of light convergence or divergence in an optical system, which refers to the distance of parallel light from the optical center of a lens to the focal point of light convergence. It is also the distance from the center of the lens to the imaging plane (such as the back plate or CCD in a camera-like system).