From the course: Enhancing Night and Low-Light Photos with Photoshop

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Exposure stacking to create star trails

Exposure stacking to create star trails - Photoshop Tutorial

From the course: Enhancing Night and Low-Light Photos with Photoshop

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Exposure stacking to create star trails

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- [Instructor] As the Earth rotates, it creates the appearance that the stars are moving across the sky. Actually, the stars are moving, as are all the objects in the night sky, but the familiar motion of the stars that you've probably seen in time lapses is really caused by the rotation of the little blue dot that we call home. In order to capture star trails in a single shot, you'd have to leave the camera shutter open for a very long time. Many minutes or even several hours depending on how long you wanted the star trails to be. This can cause heat to build up in the camera and the sensor to get hot, which might lead to noise issues. A much easier way is to take a series of shorter exposures and then combine them using a technique known as exposure stacking or layer stacking. Let's take a journey to the stars and check it out. So, I have a folder of 50 images for this project and these are all 30-second exposures…

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