Nikon 16mm f/2.8D Fisheye
$ ?( ^' v( X* M) H/ p1 c; T6 QField of view (FOV) - horizontal, vertical, diagonal:) ^' m! r+ L; Q
; Z9 I6 {. l1 ^3 P% P
* V; s5 \' m x8 X•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
) D8 m% A i& J0 G+ @1 `•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
- Y6 O; W" f% W( N9 X/ q l
3 e2 d. S3 W7 ?# W/ |Number of pictures required for a 360° panorama:
B2 g: R1 ~/ B5 q; f& d* X& a+ ?6 V: ]4 k9 x. ^( a' a1 a
•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)
) \ P( Q6 T1 j7 R9 r& r- T" W! w•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)
" m4 {1 C( }! }; t7 q•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z0 e1 V+ z' ]( F7 r) s4 Z
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) |