Nikon 16mm f/2.8D Fisheye5 c R# ?% g( z8 c- D" U$ w, Q9 P
Field of view (FOV) - horizontal, vertical, diagonal: j) ?6 \9 i: p' m. T# ^& R" s( F; z
% B% G$ }7 ]3 }, F
2 A7 i1 A8 i! _; W
•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
* i: ~; V7 n1 q' A6 t•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°5 ~# {+ i3 W& [8 _- c* O
! |) U% ^ P! o: v2 `5 ENumber of pictures required for a 360° panorama:7 f' m- b5 k% o9 G
# Q- }" }$ E$ G: K+ P5 h•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)7 J1 q5 C: Y* C. Z7 z$ y
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
7 G4 C+ d, U" [9 O* q•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z. t) D/ N+ B# A& F( ~. m
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) |