What is a PC sync cable for a flash?

A PC sync cable is a versatile cable that enables you to connect any external speedlight flash to a camera. It was mostly seen in older film cameras. It’s important to note that this type of cable is not used to connect a camera to a computer. The term “PC” comes from Prontor-Compur, two now defunct German companies that created shutters for cameras.

By connecting the cable from the external flash to the camera, you can sync the flash with the camera’s shutter. Even if a camera has a built-in flash, it may still have a PC sync port, (such as with the Lomo’Instant Wide, which allows you to have more control over your flash settings. Besides this, the PC sync port will also let you connect your camera to studio strobe lights, allowing the camera and studio light to be in synch during studio sessions.

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