Nikon 16mm f/2.8D Fisheye
`/ v3 _4 g4 w7 r# aField of view (FOV) - horizontal, vertical, diagonal:# }7 }+ R, ?, r# }! S: i
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' [% C" m) w9 m( x7 ?* L/ R•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°( ~% m/ @4 H; @9 [7 h; F
•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
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2 a8 x/ x! R. V! L' m7 MNumber of pictures required for a 360° panorama:; W9 s+ Y+ Z9 ^ a2 e
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•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
6 H6 @# K% P0 @+ L/ v•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
4 d! h# ^, V5 L! d# ~/ n•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z7 e& s- d2 J% G
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) |