Example image of eyePlorer eyePlorer map for 'Cardinal point (optics)': Optics Paraxial approximation Plane (geometry) Point (geometry) Carl Friedrich Gauss Focus (optics) Lens (optics) Aperture Entrance pupil Exit pupil Focal length Image Magnification Ray (optics) Ray tracing (physics) Snell's law Specular reflection Optical axis Diaphragm Telecentric lens Charge-coupled device Digital single-lens reflex camera Vignetting Refractive index Vacuum Thin lens Anatomy Lens (anatomy) Diaphragm (optics) Panoramic photography Parallax Photography Confocal microscopy Focal-plane shutter Optical sectioning Cape Beale Light East Island Lighthouse (Western Australia) Kepler photometer Lens speed Nikon F-mount North Mole Lighthouse Telephoto lens Cliffy Island Lighthouse Fort Queenscliff Lighthouse Idoru Kullen Lighthouse Radius of curvature (optics) Superachromat Visual angle Amrum Lighthouse