Example image of eyePlorer eyePlorer map for 'Zoom lens': Angle of view Focal length Lens (optics) Prime lens Binoculars Camera Microscope Movie camera Optical instrument Projector Still camera Telescope Telescopic sight Video camera Parfocal lens Varifocal lens Digital camera Single-lens reflex camera Superzoom Telephoto lens Wide-angle lens Digital zoom Optical resolution Digital image processing Beam expander Digiscoping Magnification Optical telescope Irradiance Laser Royal Society Patent Böwe Bell & Howell Cooke Optics 35 mm film Computer Ray tracing (physics) Servo Chromatic aberration Optical aberration F-number Autofocus Distortion (optics) Canon EF 100-400mm lens Canon EF 24-105mm lens Canon EF 24-70mm lens Canon EF 24-85mm lens Canon EF 28-105mm lens Canon EF 28-70mm lens Canon EF 70-210mm lens