Hi everyone,

I'm working on an afocal system using its paraxial layout, and I’m wondering if there's a way to specify or constrain the F# of a single paraxial lens within the MFE.

Specifically, I’d like to optimize both the focal length and diameter of the lens, but maintain a fixed ratio between them (i.e., control the F#), or at least define some boundary conditions to keep them consistent.

Any suggestions would be greatly appreciated!

Thanks in advance!