Nikon 16mm f/2.8D Fisheye! G4 J3 i1 G D. ]7 y! F3 E
Field of view (FOV) - horizontal, vertical, diagonal:
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' k; Z, J' M, n! n# i0 H2 U1 U! S/ P" r•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
" ? I$ r, e3 u1 T0 Z•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°0 ~6 ~- C3 C, g! \# \9 Q+ q8 T
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Number of pictures required for a 360° panorama:
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& G# w9 \1 u. Z•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
, C( l8 i, f9 f s: Z" _3 f# ]" E•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)& ^4 }9 W2 y0 v- ]9 q
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z
: o: Y# }7 c2 v6 a. R6 Z: W. `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) |