Nikon 16mm f/2.8D Fisheye0 `3 G& \7 B" v& i! {2 e n& P
Field of view (FOV) - horizontal, vertical, diagonal:
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•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
" ~% p, H/ W& h* T/ m- J" Z* M8 ?•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
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9 Q* S2 b+ U( h: w9 RNumber 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)8 V) f! a8 e: t+ W
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
. y2 W" k" `! s. N) _) ]0 K•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z2 |. H! \. n2 T& j
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) |