Write down the function of hood, tripod, cable release and still life table.

The function of the hood is to prevent stray light from entering the lens, thus eliminating fog and improving the clarity and color reproduction of imaging. The hood can also prevent accidental damage to the lens, prevent fingers from touching the surface of the lens by mistake, and shield the lens from wind, sand, rain and snow to some extent.

Hood is a device installed in front of photographic lens, digital camera and video camera to block harmful light, and it is also one of the most commonly used photographic accessories. There are three kinds of common hoods: cylindrical, petal-shaped and square, and the first two are mostly.

The most important and direct function of cable release is to reduce the vibration and skew caused by pressing the shutter when shooting, which affects the picture texture. At the same time, it can also control the long-time exposure and continuous shooting to achieve short-distance self-portrait.