7f~7vydZ} F-tanθ畸变最大显示89度,刚查了手册 + Cq&~<B 原文如下: /|<0,oz oJ Note that this reference is meaningless for optical " j:15m5 systems that use field angles at or greater than 90 degrees. If a system with field angles over 89 degrees is =J )(=, analyzed with this feature, the maximum computed field angle will be limited to 89 degrees