I='6>+P F-tanθ畸变最大显示89度,刚查了手册 WR:I2-1 原文如下: bX*>Zm Note that this reference is meaningless for optical X0FTD':f systems that use field angles at or greater than 90 degrees. If a system with field angles over 89 degrees is 1iLrKA analyzed with this feature, the maximum computed field angle will be limited to 89 degrees