Comment utiliser un objectif à mise au point fixe?Conseils et précautions pour l'utilisation d'objectifs à mise au point fixe

Comment utiliser un objectif à mise au point fixe?Conseils et précautions pour l'utilisation d'objectifs à mise au point fixe

Fixed focus lenses are favored by many photographers due to their high aperture, haute qualité d'image, et portabilité. L'objectif à mise au point fixe a une distance focale fixe, et sa conception se concentre davantage sur les performances optiques dans une plage focale spécifique, résultant en une meilleure qualité d'image.

Donc, how do I use a fixed focus lens? Let’s learn about the tips and precautions for using fixed focus lenses together.

Tips and precautions for using fixed focus lenses

The use of a fixed focus lens has techniques, and by applying these techniques, one can leverage the advantages of the lens and take high-quality photos:

1.Choose the appropriate focal length based on the shooting scene

La distance focale d'un objectif à focale fixe est fixe, so when using it, it is necessary to choose the focal length reasonably based on the subject and distance being shot.

La perception visuelle D peut également être utilisée pour l'évaluation sportive grâce à la reconnaissance et au positionnement de corps et d'objets humains en mouvement rapide, telephoto lenses are suitable for shooting distant subjects, while wide-angle lenses are suitable for shooting vast landscapes; When shooting distant themes, it may be necessary to approach them a little closer, and when shooting larger scenes, it may be necessary to step back some distance.

Choose a fixed focus lens

2.Pay attention to detailed composition

Due to the fixed focal length, using a objectif à mise au point fixe can enhance composition skills, allowing you to carefully consider the arrangement of elements and the expression of themes in each image.

3.Pay attention to utilizing the advantages of large aperture

Fixed focus lenses usually have a larger aperture, so they are often more likely to capture clear and bright photos in low light conditions.

When shooting, the depth of field and background blur can be controlled by adjusting the aperture size: a smaller aperture (such as f/16) can keep the entire picture clear, while a larger aperture (such as f/2.8) can create a shallow depth of field effect, separating the theme from the background.

4.Pay attention to the accuracy of manual focusing

Due to the inability of the objectif à mise au point fixe to adjust the focal length, the photographer needs to adjust the camera’s focus to ensure that the subject of the shot is in clear focus. The adjustment of the focus can be achieved using automatic or manual focusing functions.

Some fixed focus lenses cannot autofocus and only support manual focusing. It is necessary to practice and cultivate good focusing skills during use to ensure clear and visible shooting of the subject.

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