How to set the camera storage format to cr2?

1. Turn the power switch to "On" and turn on the camera.

2. Press "Menu" to enter the camera menu.

3. Select the picture quality under the setting page, and then press.

4. Select or in the image recording quality project.

The corresponding extension when taking photos in format is: CR2.

Two files will be stored at the same time when taking photos in the format: one is CR2JPG

Camera: It is a kind of equipment that uses the principle of optical imaging to form an image and records the image with a negative. This is an optical instrument used for photography. In modern social life, there are many devices that can record images, all of which have the characteristics of cameras, such as medical imaging equipment and astronomical observation equipment.

Working principle:

1. The camera uses the linear propagation characteristics of light and the law of refraction and reflection of light, and uses photons as the carrier to transfer the light information of the shot scene at a certain moment to the photosensitive material in the form of energy, and finally becomes a visible image.

2. The optical imaging system of the camera is designed according to the principle of geometric optics. Through the lens, the scene image is accurately focused on the image plane through the linear propagation, refraction or reflection of light.

3. When taking pictures, it is necessary to control the appropriate exposure, that is, to control the amount of photons reaching the photosensitive material. Because the range of photons received by silver salt photosensitive materials is limited, too few photons form latent image nuclei, and too many photons form overexposure, so the image cannot be distinguished.

Explanation of terms:

Imaging plane (focal plane): generally refers to the plane where the imaging material is located. The light is concentrated on the imaging plane through the lens, thus forming a clear photo.

Focal length: refers to the distance between the lens and the negative. If the focal length is appropriate, the light reflected by the scene can be gathered on the imaging plane through the lens to become a point, and if the focal length is not appropriate, it will become a circle, causing the photo to be blurred.

Exposure: When the shutter is opened, the light passes through the lens, through the aperture, enters the darkroom, and finally shines on the imaging material. This process is called exposure.

Aperture value: refers to the size of the darkroom window. The lower the aperture value, the larger the window, the more light penetrates, which will increase the exposure, and vice versa.

Zoom: Zoom of digital camera can be divided into optical zoom and digital zoom. Optical zoom is to zoom in and out the scene to be shot by moving the lens; Digital zoom simply cuts the image taken by CCD.

Aperture priority: refers to the photographer manually specifying an aperture value, and the camera automatically calculates the exposure mode corresponding to the shutter speed according to the photometric results, which is suitable for scenes that need to control the depth of field.