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酷暑严寒 发表于 2013-3-4 16:07 $ \: d2 c0 x) D
PINK 推荐这个玩意儿已经多次了,请给说说这东西怎么能帮助解决这个镜头的变形问题。。。 我一直没想明白 ...
# p+ E9 j- ^6 D4 K% uBro, I never really give a thought about the question you asked, I am not a expert on optical, but there are similar examples in the daily life. 0 ?5 G* a' X, R# P% J/ v
/ k% I8 _9 o7 C s2 RStand on top of a chair 2m away watch your flat screen TV, is the top bigger than the bottom? Motor said is right, tilt your camera/lens down is essentially the same thing, you are tilting the senor, alter the distance difference of different subjects in the shot cause spacial distortion, the wide angle lens already struggle to get everything from different distance in focus, tilt it down will make things even worse. If you get chance try Fisheye lens, best way to minimum the effect is level it, it's the same reason. , F; V! G1 G! T; [8 ^' h
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Of cause the way camera/lens take pictures is not the same as human generate vision, but you should get the idea.& \0 B0 U! E" ]- E& Q
$ O1 m/ I o3 @) U3 X% r7 JBTW. The bubble level on the tripod never works well in the field, the one attached to camera is the best.
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