真实的视觉错位.doc

真实的视觉错位The pictures that make you look twice: Intriguing optical illusions that were created with no camera trickery真实的视觉错位With cameras often believed to reflect the real state of things, to create a facsimile of the true state of the world, when photographs show something wildly chimerical it delights the imagination.相机通常是用来反映事物的真实状态的，是对世界真实状态的复制，可是当相机捕捉到了一些荒诞不经的图像时，它也愉悦了我们的想象力。Many of the incredible images in this set play with our sense of perspective by bringing side by side two elements that are, in fact, distant from each other in depth.这组图片通过把两种完全不同的元素组合在一起从而创造了视觉上的假象，让我们信以为真。That illusion leads to such remarkable images as the festival-goer who appears to be projectile vomiting a rainbow, the ant that seems to be facing off with a helicopter at dusk, and the girl who looks as though she is wearing a tulip for a skirt.这些视觉上的假象给我们形成了如此非凡的影像，包括节日狂欢者喷射性地吐出彩虹，在黄昏时刻一只蚂蚁好像在和一架直升机在对抗，以及有一名女孩子正在把一朵郁金香当成裙子在穿着Such images are possible to create for yourself, but they require carefully executed photographic techniques to capture the required depth of field to keep each element in focus, despite the differences in distance.你自己也可能能够拍摄出这样的照片，但是这需要精巧的摄影技术来捕捉一定的视野深度来达到画面中元素清晰的目的，在元素在距离上存在差异的情况下。Smaller apertures, shorter focal lengths and further focusing distances produce deeper depths of field, so to create an image where the background is as sharp as the foreground you will want to use a wide-angle lens set to the highest F-stop number available, and stand back a little from the subject.更小的孔径，更短的焦距以及更进一步的聚焦距离才能生出更深的野深度效果，为了拍出一张背景与近景效果都一样强烈的图片，你可能会使用调到最高F光圈的广角镜头，并且以向后退一点的距离来拍摄物体。This will capture the image with a hyperfocal distance, bringing all objects into focus. The finished image will be sharp from front to back.这样就可以以超焦距来拍摄物体了，画面中所有的物体都可以非常的清晰了。拍完照后，整张照片从前到后视觉效果都会非常的强烈。If you have a pocket camera, setting it to landscape mode should work almost as well.如果你拥有一个袖珍照相机的话，那么把其设置成横向模式也可以起到相同的效果。But when it co