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What is the function of the camera lens hood?

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2023-02-15 14:35

　　The lens hood is installed on the ✘front of the lens to block the external light in≥ the photo. In addition, it also helps to pro✔tect the lens from damage, in case you accide ntally hit it, as long as you put a simple accessory on the lens, ←you can greatly improve Ωthe image quality and extend the life of the lens itself.

　　1. The hood can minimize gla←re

　　The main purpose of the h<ood is to reduce the amount of glare that appears in t≠he image. If you have ever taken photos in bright light,→ you may experience glare and glare even if the light source is out₽side your frame. Especially if you are using a low-cost filter, or your lens does not hav÷e an advanced anti-reδflection coating. Some lenses are more susceptible t→o glare than others. The good news is that the lens hood can help.

　　2. The hood increases the contrast

　　The hood not only prevents large areas of glare and image discoloration. They can also improve the contrast and color in the photo. If used properly, the hood will not damage the image quality even if there is n≤o direct sunlight. Keep in mind that any random light source may cause the imageΩ contrast to drop.

　　Third, the hood can protect the lens from d∑amage

　　In addition to improving image quality, another main purφpose of using a lens hood is to pro→tect the lens from impact, scratches, fingerprints and other damage.

　　The lens hood also helps prevent debris from entering the &front of the camera lens, whi×ch is especially useful when shooting in rain or snow.

　　Fourth, the type of hood

　　So far, two main ty✔pes of lenses can be used: petals and cylindrical.

　　Petal hoods look more interesting-but why do they have this shape? Since t he camera's sensor is rectangular, the design of the petal hood is perfect; its grooves mak e it possible to maxi←mize the space in the four corners of the image. This also means that you need to mount§ it perfectly on the l"ens.

　　Cylindrical hoods have a simpler design and∏ are usually not so easy to use. But it cannot be said with certainty thatΩ the cylindrical lens hood is not necessarily go od. Many telephoto lenses, especially ordinary lenses, use cylindrica™l lens hoods.

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