How long does time-lapse photography usually take?

Time-lapse photography is usually as follows:

Shooting time = (interval time+shutter speed) x frame rate (frames per second) x final image duration (seconds) For example, if I want to get a film with a frame rate of 25 and an interval of 4 seconds, then I need to take 250 photos in the early stage, which takes 1000 seconds, which takes about 17 minutes.

Time-lapse photography, also known as interval photography, time-lapse photography and time-lapse photography, is a kind of photography technology that sets the shooting frequency of the picture to be much lower than that required for watching continuous pictures in general. Time-lapse camera is a kind of camera that takes pictures by time-lapse photography.

When you play at normal speed, you will feel that time passes faster and have a sense of passing. For example, if a changing scene is shot continuously at the speed of one shot per second and then played at the speed of 30 shots per second, the visual effect will be accelerated by 30 times.

history

Time-lapse photography is often used to photograph crowds and traffic conditions. Using this technology to shoot slowly changing and imperceptible objects will produce a smooth visual experience. If it is used to shoot a rapidly changing subject, it will show a drastic change effect.

1897, Frenchman Georges Méliès used time-lapse photography to shoot the film "Carrefour Opera" for the first time.

From 1909, Jean Comandon cooperated with EMI Film Company to apply time-lapse photography to record biological phenomena. In the1920s, time-lapse photography was further used by Arnold Frank in a series of films called Berg Films.

term

The shooting speed of time-lapse photography can be adjusted at will, from close to normal shooting speed (between 24 and 30 shots per second) to only one shot per day, or even one week or more, depending on the shooting theme.

The word shrinkage can also be used to refer to the time when the camera shutter is open when each image in the film is exposed. In movies, according to the fineness of the camera system used, the two methods of time-lapse photography can be used together.

These two forms are needed to photograph stars that move with the earth's rotation at night, because each image needs a long exposure to make the faint starlight clearly appear.