Nikon 16mm f/2.8D Fisheye
5 U# O, F; \6 h/ @) ]" Q4 jField of view (FOV) - horizontal, vertical, diagonal:
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•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
2 R" y( q5 S+ A: N•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
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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)5 L2 b; {/ Y. w
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)9 ~/ `; f! k- |3 H( d
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z: a# {7 I! P0 x) O" q
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) |