long-focus magnetic lens

例句：

1. 1. The long-focus lens is used to capture distant objects in low light conditions.
   长焦距透镜用于在低光照条件下捕捉远处物体。
2. 2. The long-focus lens helps to reduce the image blur caused by camera shake.
   长焦距透镜有助于减少因相机抖动造成的图像模糊。
3. 3. The long-focus lens provides a wider field of view and greater depth of field.
   长焦距透镜提供了更广阔的视野和更大的景深。