How to play Canon EOS20D

Depth of field priority (A-DEP)-It is a unique manual exposure mode for Canon SLR cameras. When operating, the aperture value is controlled on the premise of depth of field, and the camera automatically adjusts the shutter speed to achieve correct exposure under the premise of satisfying the depth of field effect. In fact, there is no essential difference from the "aperture priority" exposure mode. Manual exposure (M)- An exposure mode in which the photographer can freely control the aperture and shutter value, so that the photographer can make exposure as needed. Aperture Priority (AV)-The user decides the aperture value, and then the camera automatically controls the shutter speed according to the photometric value, thus realizing the exposure mode of accurate exposure. More suitable for scenery, portraits and other photography categories. Shutter priority (TV)- Some users also call this exposure mode speed priority. Contrary to aperture priority, the user controls the shutter speed and gives the control of aperture to the camera. This exposure mode is favored by sports photographers. Program Exposure (P)- In this mode, the combination of aperture and shutter is controlled by the camera. Some people confuse this mode with fully automatic mode. In fact, there are still many differences. Take EOS 20D for example. In P mode, users can still choose different exposure combinations. In addition, a series of flash settings, such as exposure compensation, focus selection, exposure locking, white balance setting, ISO sensitivity, etc., can be realized in P mode. Auto)—— mode-The shooting mode represented by the green square on the mode dial is also an out-and-out "fool" mode, and all settings such as focus, exposure and white balance are determined by the camera. The only adjustments are the image size and driving mode (only between single shot and self-timer). At this time, the autofocus mode of the camera will be automatically set to, the driving mode will be set to single shooting, the metering mode will be evaluation metering, and the camera will select the focus point covering the nearest subject as the autofocus point. Portrait mode-In this mode, the camera autofocus mode will be automatically set to, the driving mode will be set to continuous shooting, and the metering mode will be evaluation metering. When using this mode, it is suggested to use a medium telephoto lens to further blur the background and highlight the main body of the character. Landscape mode-the camera autofocus mode is automatically set to, the driving mode is automatically set to single shot, and the metering mode is evaluation metering. Using a wide-angle lens, you can get a good picture effect with good depth and width. Macro mode-autofocus mode is, driving mode is single shot, and metering mode is evaluation metering. In order to get better macro effect, the following suggestions are provided: (1) Shoot with the closest focal length of the lens as much as possible; Shoot with telephoto end as much as possible; Choose a macro lens, a close-up, or even a ring flash. Motion mode-the camera tracks the subject with the central autofocus point first, and then continues to track the subject with any other focus point until the shooting is completed. When this mode is selected, the camera will set the autofocus mode to, the driving mode to continuous shooting, and the metering mode to evaluation metering. A telephoto lens is recommended. Portrait at night-The principle of this mode is: use the flash to illuminate the shooting foreground, and at the same time use the slow door to brighten the background synchronously (if shooting a night scene with no prospect, you can use the landscape mode). Auto focus mode is, driving mode is single shot, and metering mode is evaluation metering. Flash off-equivalent to the automatic shooting mode of forcibly turning off the flash. In this mode, the autofocus mode will be automatically set to, the driving mode will be single shot and the metering mode will be evaluation metering.