Nikon 16mm f/2.8D Fisheye
6 H; o* w1 J, H# |Field of view (FOV) - horizontal, vertical, diagonal:
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: A: V# m; X! d8 g: P5 f# [3 f•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
5 {0 z8 ^- k6 u0 K' C" `* H9 B•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°" ?, g e6 K, v1 e& C4 Z8 A
5 D, y9 m4 B6 }6 r t3 j7 WNumber 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)% g& S+ { ^% L; U4 d3 w# {
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)/ O& a4 x: c/ z+ D
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z4 d3 R% D# n# 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) |