One of the basics of photography is the need for light. Of course, you can use the sun as a light source. If it is not shining or you are in another dark place, you can resort to artificial light. In addition to normal lamps, there are also flash lights. After the camera opens its shutter and the light-sensitive film is exposed, the flash fires. In a split second, the surroundings are illuminated and you can capture the scene.
Over the decades, various types of flash solutions have been developed that connect to the camera in different ways. One solution that is still very common today is the hot shoe or flash shoe.
A hot shoe is an attachment point on the top of a camera. It takes the form of an angled metal bracket surrounding a metal contact point that provides an electrical connection between the camera and accessories for standard, off-brand flash synchronization.
The hot shoe is an evolution of the standardized “accessory shoe” without flash contacts that used to be attached to cameras to accommodate accessories such as a rangefinder or a flash connected via a cable.
The dimensions of the hot shoe are defined by the International Organization for Standardization in ISO 518:2006. Modern SLR cameras also offer the possibility of communicating with a flash unit, for example to automatically adjust the output. Some caution should be taken with the voltage, as this may not be standardized depending on the model. Of course, you can also fire a radio trigger via a hot shoe, which will then trigger one or more studio flashes.
Here is an overview of analog cameras for photo film with a Hot Shoe.
