Nikon 16mm f/2.8D Fisheye \# r/ t* k2 l, C' X
Field of view (FOV) - horizontal, vertical, diagonal:- n( Y' p0 k) d- b4 K# n
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# K7 b: ^! a: q' \- N" v: l' F! z•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
5 {. u" \& [2 _; h% _3 x•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°3 y$ ]$ g. X: q- G" F4 \9 e
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Number of pictures required for a 360° panorama:; G- {' j6 i/ M: ?2 [9 Q$ ~9 V
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•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)# N* U3 y: a% u
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
" J1 R0 m& y5 R9 y+ O0 f' U3 Z•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z
0 n4 O S" _( D+ U6 S1 y% v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) |