Dear all,

I am trying to draw a Grid Sag lens in non-sequential mode. The front surface is a conic surface and the back surface is defined by a GRD file. I saw that I can define the aperture of back surface by X- and Y- half widths. However, the resulting lens looks like truncated, which reminds me of the situation in sequential editor where I didn’t set up the aperture of front surface properly.  See the screenshots below. Any one has any idea how I can set the aperture of the front surface in Grid Sag lens? @David Nguyen @Csilla Timar-Fulep 

Regards,

Jiang