Nikon 16mm f/2.8D Fisheye
' z- `2 b" t$ f2 N( i6 V+ A6 HField of view (FOV) - horizontal, vertical, diagonal:$ @, ]( C3 S7 }
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4 h3 ~3 W8 k$ \5 |& t7 I•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
0 b7 h' k% \- n8 V, G3 _3 e•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
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Number of pictures required for a 360° panorama:
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, o4 X# r8 h, h; s$ G' M•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
* X+ t5 U! f5 a4 g8 W, ^/ v e•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)$ r& n: K$ x. J# j
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z8 V2 }) [. a4 B$ R
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) |