Nikon 16mm f/2.8D Fisheye
! ] P& G' \3 R* l' C5 fField of view (FOV) - horizontal, vertical, diagonal:3 @( t7 v4 Y+ S; {6 H- s% Q" h
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z- ?# @' i- p e6 s+ l0 F•Full-frame=16mm, HFOV: 137° | VFOV: 88° | DFOV: 170°
8 u' Y5 D+ ?, s1 ^: @ q4 Y; t! Z2 C•1.5x=24mm, HFOV: 88° | VFOV: 58° | DFOV: 107°
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$ v. [6 M& m* ~, [Number of pictures required for a 360° panorama:
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•Minimum (full-frame): N, 5 images every 72° at 0° pitch, Z (18% overlap)2 I4 t% t) g$ i
•Recommended (full-frame): N, 6 images every 60° at 0° pitch, Z (32% overlap)& ^0 ?4 |/ Z8 m e$ Z
•Minimum (1.5x): N, 8 images every 45° at -30° pitch, 8 images every 45° at +30° pitch, Z: L* C7 @9 A& _+ K2 _
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) |