Nikon 16mm f/2.8D Fisheye
; a0 C! {% b8 H/ f3 gField of view (FOV) - horizontal, vertical, diagonal:* e# D6 D" d- \8 |' Q9 h. y! f5 m& U
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* t3 Z+ k. p, v0 V9 i$ d7 k9 n2 W# s•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°9 g9 L/ b' q# x. z0 d
•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°. k) c6 g+ k8 A! y1 r
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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)- y3 ]# }. z; l" t
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
: m; `- C# Y. T" r/ V. d: e•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z( ^" v+ Y1 g' D% I% c9 ? H+ I' {
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) |