petern said:
Moving the lens of a camera changes the distance between the lens and the camera's image sensor, which in turn affects the focus of the image. Moving the lens closer to the sensor will result in a shallower depth of field, while moving the lens further away will result in a deeper depth of field.
Yes, you can move the lens of your camera while taking a photo. This technique is called "zooming" and it allows you to adjust the focal length of the lens and change the perspective of the image. It is commonly used in photography to create different compositions and emphasize certain elements in a scene.
Moving the lens of a camera does not directly affect the exposure of the image. However, if the lens is moved closer to or further away from the subject, the amount of light entering the camera may change, resulting in a different exposure. Additionally, if the lens is moved while the camera is in manual mode, the exposure settings may need to be adjusted to compensate for the change in distance.
Moving the lens and using the zoom function on a camera both result in a change in the focal length and perspective of the image. However, moving the lens physically changes the position of the lens in relation to the camera's sensor, while using the zoom function electronically adjusts the focal length without physically moving the lens. Additionally, using the zoom function may result in a loss of image quality, while moving the lens does not typically have this effect.
The choice between moving the lens and using the zoom function when taking a photo depends on the desired outcome and the capabilities of the camera. In general, moving the lens allows for more precise control over the composition and perspective of the image, while using the zoom function may be more convenient in certain situations. It is recommended to experiment with both techniques to determine which one works best for each specific scenario.