Nikon 16mm f/2.8D Fisheye
' }; ~8 s9 p) e. `3 bField of view (FOV) - horizontal, vertical, diagonal:. s# ^' M; h" O6 i$ }5 `
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•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
4 m) ~! B/ _; F. e•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°; n3 D0 b. h$ h& o: J
- H( f$ o& P# z5 jNumber of pictures required for a 360° panorama:2 q r( g2 w" i# K# X
) B" S0 H; S5 [0 I•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
& n# W( z3 t/ R3 G) U! H% o) i$ s•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
: g$ p2 ~' N6 L5 \$ x: h•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z
# P$ q, V. X# s9 n9 @! N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) |