Disclosed herein are system, apparatus, and method for accurately setting a focus flange depth and planarity of a camera lens. An aspect includes a lens housing with at least one camera lens, a camera body with an imaging plane, and a lens mount removably coupling the lens housing to the camera body via a coupling mechanism. At least one shim may be inserted between the lens mount and the camera body to adjust a depth, pitch, and yaw of the camera lens in the lens housing with respect to the imaging plane in the camera body. Each shim may comprise a body having an opening extending from an edge of the body to a center of the body. The opening of each shim is configured to receive the coupling mechanism such that the pitch and yaw may be adjusted without fully removing the lens housing from the camera body.