Traditional Culture Encyclopedia - Photography and portraiture - It takes a long exposure to shoot the trajectory of the starry sky. Does long exposure mean holding down the shutter all the time?

It takes a long exposure to shoot the trajectory of the starry sky. Does long exposure mean holding down the shutter all the time?

The orbit of shooting the starry sky is a long exposure, generally no more than one minute, and the shortest is 8 seconds. The SLR can be set in 30 seconds. Use door B for more than 30 seconds. But it is not recommended, because hands will shake. If the camera has a t-door. You can press the open key, and then press the close shutter.