How to adjust the camera lenses lens?

The adjustment of camera lenses lenses mainly includes the following aspects:
Focal length adjustment: The focal length determines the distance of the lens when shooting. Mobile phones are usually equipped with multiple cameras, each mode corresponding to different focal length requirements. For example, landscape mode requires a longer focal length to capture broad scenes, while macro mode requires a shorter focal length to capture details. In the shooting interface, the focus can usually be adjusted by sliding or clicking on the icon on the screen. Most mobile phone cameras also support autofocus and manual autofocus. Autofocus automatically adjusts the focal length to obtain the clearest image, while manual autofocus requires precise adjustments in specific scenes. ‌
Aperture, shutter speed, and ISO sensitivity: These parameters collectively affect the exposure of a photo. The larger the aperture, the more light enters, and the brighter the image; The faster the shutter speed, the less light enters, and the darker the image; The higher the ISO, the brighter the image, but the noise will also increase. By adjusting these parameters, the brightness, clarity, and noise of the photo can be controlled. ‌
Exposure compensation: When the image feels dark, you can increase the exposure compensation appropriately to make the image brighter. On the contrary, if the image is too bright, the exposure compensation can be reduced. ‌
White balance: White balance is used to adjust the color balance of photos, ensuring that the colors of photos taken under different light sources are natural. The higher the K value, the warmer the screen; The lower the K value, the colder the screen. Choosing the appropriate white balance mode according to different lighting environments can effectively avoid color cast.
Focusing mode: Focusing is divided into automatic focusing and manual focusing. Auto focus is suitable for most daily shooting, while manual focus is more suitable for scenes that require precise focusing. ‌
Precautions when adjusting the lens:
Maintain camera stability: Whether it's autofocus or manual autofocus, it's important to ensure camera stability. Even slight hand tremors can cause blurry images. You can use both hands to hold the phone steady or use a tripod to reduce shaking.
Pay attention to lighting conditions: Lighting is an important factor that affects the quality of photos. In low light conditions, even if the focal length is adjusted, the photo effect may be poor due to insufficient exposure. Therefore, try to shoot in an environment with sufficient lighting.
Regularly clean the lens: Keeping the lens clean is also key to obtaining clear photos. Regularly wipe the lens with a soft cloth to avoid fingerprints and dust affecting the shooting effect.
By familiarizing oneself with these adjustment methods and precautions, one can better master the techniques of mobile photography and improve the shooting effect.