The user manual is technically divided into several volumes:

Alex starts at the , the brain of the design. Aperture : Alex sets the Entrance Pupil Diameter to 50 mm.

The manual is divided into distinct districts, each serving a different user:

If you need to control a specific parameter (like focal length), search the manual’s "Operand Alphabetical List." It will tell you to use the EFFL operand.

Nearly half of all OpticStudio users ignore Non-Sequential Ray Tracing because the manual looks intimidating. However, this is essential for stray light analysis and illumination design.