When did Sony Flash, the magical tt685s, go on the market?

The English scientific name of flashlight is flashlight. Flash is also one of the ways to enhance exposure, especially in dim places, which helps to make the scenery brighter.

The Chinese full name is "electronic flash", also known as high-speed flash. The electronic flash lamp stores high-voltage electricity through the capacitor, and the pulse triggers the flash tube to discharge, thus completing the instantaneous flash. The color temperature of the usual electronic flash is about 5500K, which is close to the color temperature in the sunlight during the day. Its luminescent property belongs to cold light type, which is suitable for shooting objects that are afraid of heat.

Flashlights can be roughly divided into three categories, and their functions and performances are different according to different types.

1, built-in flash, using the built-in flash will cause a lot of power consumption of the camera, and the built-in flash does not support various advanced functions of the flash.

2, external flash, external flash is generally located at the top of the camera fuselage, some high-end external flash also provides a variety of advanced functions.

3, handle flash, handle flash is often used in photo studios, photo studios, wedding photography studios and other professional places.

4. Electronic police flash

LED lightning series high-definition intelligent digital flash is a new type of high-power and high-performance digital pulse LED flash, which is developed for various capture systems to meet the working environment and functional requirements of electronic police, such as safety bayonet, speeding capture and running red lights.

5. Photo studio flash, high-power flash used in professional photography places such as photo studio, photo studio, studio, etc., generally cannot be held by hand due to factors such as weight and volume, and often stands on a special tripod or slide.