The lens hood is a common photographic accessory set in front of the camera lens. It has the following functions:
1. It can prevent the entry of non-imaging light and avoid fog when shooting in backlight, side light or flash photography.
2. It can prevent the scattered light from entering the lens when taking photos with forward light and side light.
3. In lighting photography or night photography, it can prevent the surrounding interference light from entering the lens.
4. It can prevent accidental damage to the lens, and it can also prevent fingers from touching the surface of the lens by mistake. It can also shield the lens from wind, sand, rain and snow to some extent.
Lens hoods are widely used in backlight photography, generally speaking, to avoid glare. However, if the light source is close, glare may still occur. At this time, you can use your hand to block the hood on the side where the light source is located. Whether the glare is eliminated, you must observe it clearly in the viewfinder.
The role of UV mirror:
1. Protect the lens, avoid direct contact and cause damage;
2. Absorb ultraviolet rays in the atmosphere, eliminate fog, and increase imaging clarity;
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