Nikon 16mm f/2.8D Fisheye
6 B4 x& l) T! E6 v2 [3 xField of view (FOV) - horizontal, vertical, diagonal:
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•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°7 A7 h- K# A) l( ?! l
•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°8 m; C; w0 _; Y. p4 @" T5 Z
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Number of pictures required for a 360° panorama:
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•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)% E6 [9 O8 w5 l1 Q
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)) y( ?- d* \5 W. i" q
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z7 W* R; ?$ d( |7 h
歪把子后，对角线170度上扬5-10度，然后补地面。（根据计算，没有亲自实践仅供参考） |
