We often hear about flash sync speed and how we normally cannot use a flash to sync at extremely fast shutter speeds. A flash is an intensely powerful beam of light that is fired instantaneously. It can go as fast as 1/40000 sec. Shutter speeds on the other hand are also pretty fast, but not... Read more » We often hear about flash sync speed and how we normally cannot use a flash to sync at extremely fast shutter speeds. A flash is an intensely powerful beam of light that is fired instantaneously. It can go as fast as 1/40000 sec. Shutter speeds on the other hand are also pretty fast, but not... Read more » 
