Nikon 16mm f/2.8D Fisheye
' a7 Z: L' b- } mField of view (FOV) - horizontal, vertical, diagonal:
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& f8 [2 w0 l) G) P3 s•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
7 d9 m. d, Q6 y7 G1 E/ y! Q5 G•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°' u- \- r3 A# b8 J: ]
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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); J. V) ?' @4 g
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
5 A+ ^" p: _( M- _7 H•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z
. W9 S" g8 m0 S4 q; K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) |