Restrictions

Solves are evaluated sequentially from the first surface to the image surface, in this order: curvature, thickness, glass, clear semi-diameter or semi-diameter, conic, parameters (in order left to right), TCE, and extra data values (in order left to right). Because of this order, pickup solves may only pickup values from prior surfaces, or from the same surface if the source column precedes the target column.

Because solves can affect the entrance pupil position, OpticStudio does not allow certain types of solves, such as marginal ray height solves or macro solves, to be placed before the stop surface. This will avoid ambiguous or incorrect settings for the solved parameters. There is no way to predict the results of solves placed before the stop. A similar problem arises when a marginal ray solve is used on the last surface to control the focal length - the aperture definition must be entrance pupil diameter (rather than F/#) to keep the solution unique.

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