[J55%N;#1 F-tanθ畸变最大显示89度,刚查了手册 PgsG*5WQ 原文如下: <KX+j,4 Note that this reference is meaningless for optical :.(A, systems that use field angles at or greater than 90 degrees. If a system with field angles over 89 degrees is I~nz~U:ak analyzed with this feature, the maximum computed field angle will be limited to 89 degrees