[1dlV/ F-tanθ畸变最大显示89度,刚查了手册 v%=G~kF}[ 原文如下: c5<M=$ Note that this reference is meaningless for optical pb}QP systems that use field angles at or greater than 90 degrees. If a system with field angles over 89 degrees is 2>.B*P analyzed with this feature, the maximum computed field angle will be limited to 89 degrees