Nikon 16mm f/2.8D Fisheye
2 i$ D; u6 \" C1 m5 t9 BField of view (FOV) - horizontal, vertical, diagonal:& K/ C$ G4 u: ]! A' {5 c& r. v& j. [3 r
, O2 V: o" U3 U5 Q; S7 T- K9 C' U
1 A) {# k* ^6 o$ M7 g' j8 M2 c- M•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
* A, E3 p! `# ]6 A1 w2 J; P, _•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°9 K4 A7 U& v' n# ?4 L3 W& A f
, H& r0 d! i/ [1 |% g3 `" L& [
Number of pictures required for a 360° panorama:/ _. M5 T! Z" P
* F% n# i5 u B& n# _•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)* c" b4 F+ l. A l. r5 H
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
8 X: c2 [% F6 e/ p- n•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z h, V( K# A5 d' I3 V- p/ b, q
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) |