Nikon 16mm f/2.8D Fisheye! t" _* r! {$ A6 R3 L
Field of view (FOV) - horizontal, vertical, diagonal:6 O; V( J; ^9 I7 \* j
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6 I: P/ b. u8 h& m•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
2 [- C, f4 P) A4 h" B1 ]$ `0 J•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°6 n% R6 m. j- ^6 f5 l
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Number of pictures required for a 360° panorama:
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0 J4 [0 u7 e A Q6 q•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
+ _$ ]) I z$ p1 E* W•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
) Q: \) d, B' y' a4 L•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z
7 L3 m# R0 Q2 D: U% ]+ z* L" Y% M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) |