论文部分内容阅读
摄影人都知道,除了平面的清晰度外,景深意味着三维物体成像后的清晰度。在风光或静物摄影中,为了保证前后景物的清晰度,不得不缩小光圈以至于牺牲焦平面内成像的清晰度。 到底要将光圈缩到多小才能保证我们希望的景物都清晰?多数人是借助镜头上的景深表。但如果你是一位经常拍摄风光,而且不是只扩5寸照片的人,就会发现,从景深表看已在清晰度范围之内的景物,放出来却不够清晰。这使我们很怀疑景深表的清晰度究竟是什么标准?它到现在还适用吗?
Photographers all know that, in addition to the flatness of the plane, the depth of field means the sharpness of the three-dimensional object after imaging. In landscape or still photography, in order to ensure the clarity of the front and rear view, the aperture has to be reduced so as to sacrifice the sharpness of the imaging in the focal plane. In the end to shrink the aperture to how small to ensure that we hope the scene is clear? Most people are with the lens depth of field table. But if you’re a regular photographer and not a mere 5-inch photo, you’ll find scenes from the depth of field that are already within sharpness are not clear enough. This makes us very much doubt the clarity of the depth of field table is what standard? Does it still apply?