What does the Sony camera "Auto" button mean?

"auto" means automatic, and the specific meaning in the camera needs to be judged according to the model. There are usually buttons such as automatic aperture or automatic white balance. \x0d\ Different models of Sony cameras have different buttons. There are usually power switch buttons, camera/photo mode switching buttons, camera buttons and photo buttons. \ x0d \ i. lens part \x0d\ zoom zoom: used for zoom lens to enlarge or reduce images. There is usually a zoom selection knob under the lens handle, which has two options: manu manual/servo automatic, which is used to set the automatic and manual adjustment of zoom. In the servo state, the zoom lever is used for automatic adjustment. The zoom lever is marked with T and W at both ends. T is the amplification subject, and W is just the opposite. The zoom speed is related to the force exerted on the zoom lever. In manual mode, the zoom ring is directly rotated by hand to change the focal length. \x0d\ IRIS: A device for changing the amount of light entering the photosensitive surface of the fuselage. (uto) Auto /M(anu) Manual Selector Switch is used to set the manual and automatic control modes of the aperture. In automatic mode, the camera will automatically select the aperture size. In manual mode, directly rotate the aperture ring by hand to adjust the aperture value. \x0d\ Note: When the above two adjusting rings are in automatic mode, do not force manual adjustment to avoid damaging the automatic adjusting motor. \x0d\ focus: Turn the focus ring to make the required image clearest. VTR(rec) Press this key, and the recording device will start recording. \x0d\ Close-up: Generally, the focus range of a lens is 0.9m to ∞ (infinity), while the macro function can shoot small objects several centimeters away from the lens. The method is as follows: put the lens at macro, focus on ∞, set the zoom ring to manual, and manually adjust the zoom ring to make the subject clear. \x0d\ \x0d\ Second, the viewfinder part \x0d\ Contrast Contrast It adjusts the contrast of the image displayed on the viewfinder screen. Peak (sharpness) Peak It adjusts the outline of the image displayed on the viewfinder screen. Brightness Brightness It adjusts the brightness of the image displayed on the viewfinder screen. Zebra crossing zebra crossing is a white stripe area appearing in the viewfinder, indicating a high exposure area. \x0d\ diopter adjustment: By using the diopter adjustment ring, users can adjust the viewfinder image according to their own sight. Counting indicator lamp: When the counting indicator lamp switch is set to 0N or high or low (indicator lamp brightness selection), it will be displayed as a machine alarm when flashing. \x0d\ \x0d\ III。 Turn on and off the power switch \x0d\ VTR save /STBY switch of the camera unit, which controls the power mode of the video recorder when it is paused during recording. \x0d\SAVE: power saving mode. The user presses VTR START (. \x0d\STBY: standby mode. When the user presses the VTR start button, the recording starts. \ x0d \ gainIn the case of insufficient illumination, selecting different gain values can improve the brightness of the signal, but the signal quality will be affected. Output output selection \x0d\CAM camera output camera signal. \x0d\BARS color bar output standard color bar signal. \x0d\WHITE BAL white balance selector switch \x0d\A B second-grade white balance storage \x0d\PRST white balance preset file Select this file with white balance color temperature of 3200K \x0d\ SHUTTER electronic shutter \x0d\ electronic shutter synchronous scanning: the standard speed of shutter is: 1/50s. In normal shooting work, it is enough. Generally, the maximum is: 1/2000 seconds. In the same way, the shutter speed is increased by one level and the aperture is attenuated by one level. The improvement of electronic shutter only increases the clarity of moving objects, but sacrifices the sensitivity and reduces the exposure. When shooting high-speed moving objects, it is necessary to consider whether it is used in editing, such as freeze-frame, slow-play, etc. If possible, adjust and increase the shutter speed. \x0d\ Synchronous scanning: TV, especially CRT of computer, has a high scanning frequency. At this time, it is necessary to adjust the shutter speed (scanning frequency) to avoid the rolling flicker of the captured TV picture. \x0d\ Audio Input Selection Settings \x0d\AUDIO IN Audio input Selection Switch: This switch is used to select the input signal to be recorded on the audio channel 1 2. \x0d\FRONT: Select a random microphone signal. \x0d\W.L (wireless) Select the signal of wireless microphone \x0d\REAR (rear): Select the signal of CH 1/CH2 audio input interface at the rear of the fuselage. \ x0d \ Audio selection CH 1/CH2 switch: This switch is used to select the way to adjust the volume. There are two AUTO (automatic) and MAN (manual) control knobs for selecting the audio level CH 1/CH2 (volume): used to control the audio input level. When the audio selection is in MAN mode, turn this knob to adjust the input audio level. \x0d\ When recording sound, general cameras have automatic and manual volume control, which is convenient for automatic operation. However, when the sound source level is low, it is easy to introduce noise. In general, the live interview of TV characters uses manual gear and directional microphone, and the airborne microphone cannot be used at will. We don't really believe in the swing of the level. Sometimes the microphone wire is not in good contact, which may not be seen from the level meter. It's best to use the monitor headphones or the camera's own monitor speaker to judge whether the recording is good or not. \x0d\ Optical adjustment and correct exposure \x0d\ There are many factors that affect exposure, but the most important one is the light environment. Optical adjustment is the first step to ensure correct exposure. The aperture coefficient of a camera is generally F 1.4-F 16. Under normal lighting conditions, that is, when the camera gain is 0dB, correct exposure can be achieved by changing the aperture. The aperture of the camera has two levels: automatic and manual. When manual, it can cooperate with the instantaneous automatic button to measure light. In the case of less emergency, it is recommended to use manual gear with instantaneous automatic button metering to make the exposure more accurate. First of all, you can roughly measure the aperture value with the automatic function, and then manually adjust it according to the "zebra pattern" prompt. If the lens has a large highlight range, the automatic aperture is lower than the correct exposure value. Observe the viewfinder and manually increase the aperture. On the other hand, if there is a large area of black in the framing range, if the automatic aperture is used, the aperture will be too large, which may cause overexposure of the subject, so the aperture should be reduced. Automatic aperture is mainly used for snapshot, and its average value can be adjusted through the menu to increase or decrease the automatic aperture of 0.5- 1. It is convenient to use, but it is not accurate. \x0d\ When shooting under strong light, the light will be attenuated. Cameras above professional level are equipped with neutral density filter ND, which can be used according to the light conditions. However, some low-end cameras don't have neutral density filters, so they should cooperate with electronic shutters to attenuate light, otherwise the white balance can't be adjusted. When shooting under a very bright background (backlight), the background may be too bright, which limits the normal exposure of the subject. At this time, the automatic knee circuit of the camera can be turned on, and the dynamic range of correct exposure can be improved by 600%. The edge of the backlit scene is illuminated, forming the effect of side light. Of course, in this case, it is best to fill the light in front of the main body to reduce the contrast between light and dark. In shooting, we often encounter various situations that need to be filled with light. At this time, the color temperature of artificial light and natural light is required to be unified. Otherwise, the picture color will be distorted. \x0d\AUTO W/B BAL automatic black and white balance adjustment \x0d\ This switch is set to ABB automatic black screen balance adjustment and AWB automatic white balance adjustment. \x0d\ The so-called black-and-white balance means that the camera can accurately restore black and white in different light environments through circuit adjustment. \x0d\ Adjustment of black-and-white balance and color reproduction \x0d\ The adjustment of black-and-white balance is to obtain correct color reproduction, but sometimes we also need some special picture atmosphere, such as morning and dusk, when the color temperature is low and people's visual experience is golden. If we balance the white paper with the sun, we won't get the ideal effect. At this time, we can use a 5600K color filter to shoot directly without adjusting the white balance. \x0d\ White Balance Adjustment (AWB): In order to accurately reproduce the color of the scene, the camera needs to adjust the white balance. The adjustment of white balance is generally divided into two steps. The first is the coarse adjustment of color filters (CC filter /ND filter), and different color filters are selected according to different lighting conditions. Followed by electronic adjustment, take a white object and flip the white balance switch. When the viewfinder shows "normal", the white balance is adjusted. \x0d\ Usually a camera has four kinds of filters (colors): 3200K, 5600K, 5600K+ 1/4ND, 5600k+1/6nd. The color filter describes 65438+3200K sunrise, sunset, indoor 25600K+ 1/4ND/ sunny outdoor 35600/ cloudy or rainy outdoor 45600+116nd \ x0d \ snow scene, mountain, coast or highlight scene. Take a 5600K landscape with a 3200K filter, and the picture can be cold. For example, if you narrow the aperture, you can shoot the effect at night in the daytime light. \x0d\ black balance (ABB): the camera needs to be adjusted when it is not used for a long time or the ambient temperature changes greatly. Black balance is the basis of accurate white balance. Turn on the adjustment switch, whether the aperture is manual or automatic, it will be closed, and the viewfinder will display 0K, at this time, adjust the black balance. ABB generally does not need to be adjusted.