Time-lapse photography, motion shots

Answer 1

When shooting time-lapse motion shots (large-scale moving time-lapse photography), you usually need to pay attention to the following:
1. ** Confirm the reference point **: Before shooting, you must first determine the reference point in the picture to prevent the main body of the picture from swaying left and right in the later video. The reference point should be a fixed point that will not disappear during the shooting process (including a point that will not be blocked during the shooting process), a clear point that is easy to aim at, and a marked point near the middle of the screen (generally, it can be set by the intersection of grid lines, the focus point, or by marking on the screen). After that, he had to ensure that the reference point coincided with the selected screen mark point every time he moved.
2. ** Make sure the camera is level **: After aiming at the reference point, check whether the camera is level every time you shoot. The images shot at different levels will produce a certain level of trembling in the later stages. Because the human eye is more sensitive to horizontal shaking, even if slight shaking can be solved through post-processing, it is still recommended to check the level of the pan/tilt or the body every time you shoot.
3. ** Equal interval exposure **: Similar to ordinary time-lapse photography, large-scale moving time-lapse photography also requires equal interval exposure. Especially when there were slow-moving objects such as clouds in the picture, if the exposure interval was too different, it would affect the continuity of the later picture.
4. ** Equal Distance Movement **: The focus of large-scale motion time-lapse photography is the uniform movement of the lens. When the exposure interval is equal, the uniform movement is equivalent to requiring the same distance of movement every time. If the movement distance was too far away, the screen would be stuck and affect the continuity of the video. There was no fixed distance for each movement, as long as the movement distance was proportional to the speed of the screen. In addition, the distance of a single movement could be calculated theoretically according to this formula: Total distance/number of photos (frame rate * film length)= single distance. Usually, the tiles could be used as a reference, and the distance of the corresponding number of tiles could be moved each time.

In terms of equipment, he might need to use a single-lens reflex camera, tripod, timed shutter release, delay track, lens filter, and so on. The single-lens reflex camera was used to take a series of photos at the same time interval. The tripod ensured the stability of the shooting image. The timed shutter release could help the single-lens reflex camera trigger the shutter at the same time interval (when the camera did not have the interval shooting function). The delay track could make the camera move a certain distance on the track every time it took a photo to achieve the purpose of moving the camera. The lens filter could be used to filter light, adjust color or spot shape.

In terms of the camera body settings, it could be set to M, manual USB, F8 aperture, manual white balance (you can use the default or manually adjust the K value), turn off the body's high-sensitivity noise reduction, and turn off the body's automatic dark compensation (Nikon's D-lighting, Canon's highlight priority mode, and Sony and Pentax's automatic HVR). For the shutter release setting, if you use the Yongnuo MC -36b, you only need to set the INT LV option (the interval between each shot), and you need to set the interval and shutter speed according to the shooting scene (such as traffic, pedestrians, cloud movement, etc.). At the same time, it was necessary to prepare sufficient spare batteries, memory cards, and other accessories according to the length of the required material. If conditions permitted, it was best to connect the alternating current to shoot.
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