01-13-2014, 11:47 AM
(This post was last modified: 01-13-2014, 12:15 PM by stoppingdown.)
You're right, "rotate" is ambiguous. It's option A.
But I disagree with your answer. Neither the subject nor the camera moved, thus the distance is exactly the same.
*** edited to add: I understand there's another ambiguity in my post. The subject is relatively small, a bell tower at 500m, so there's not a "center" or a "border" of the subject. The "center" and "border" are those of the framing.
PS Apart from the fact that with a subject at 500m I believe there's plenty of DOF to play with: in the worst case, 70mm, at ƒ/8 focused at 500m, the near DOF limit is 29m... but as I said, this shouldn't be ever needed in this case.
But I disagree with your answer. Neither the subject nor the camera moved, thus the distance is exactly the same.
*** edited to add: I understand there's another ambiguity in my post. The subject is relatively small, a bell tower at 500m, so there's not a "center" or a "border" of the subject. The "center" and "border" are those of the framing.
PS Apart from the fact that with a subject at 500m I believe there's plenty of DOF to play with: in the worst case, 70mm, at ƒ/8 focused at 500m, the near DOF limit is 29m... but as I said, this shouldn't be ever needed in this case.
stoppingdown.net
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2
Plus some legacy Nikkor lenses.