Related by context. Frequent words. (Click for all words.) 52 Celestron 50 telescope 49 telescopes 47 imager 47 interferometer 47 eyepiece 47 adaptive optics 46 CCD camera 46 binocular 45 magnification 45 Telescope 44 confocal 43 Lenses 43 Fujinon 42 transmission electron microscope 42 Telescopes 42 optical telescope 42 optics 42 spatial resolution 42 interferometry 42 microscopes 42 NRAO 41 optical microscopy 41 JWST 41 Optics 41 Zeiss 41 spectrometer 41 lenses 41 Microscopes 41 scanning tunneling microscope 41 Spectrometer 41 ESO Very Large Telescope 41 electron microscopes 40 multispectral 40 telescopic 40 spectroscopic 40 spectrograph 40 Very Large Telescope 40 optical telescopes 39 unaided eye 39 WM Keck Observatory 39 astronomical objects 39 microscopy 39 monocular 39 redshift 39 infrared detectors 39 infrared 39 scanning electron microscope 38 confocal microscopy 38 XMM Newton 38 macro lens 38 tunable lasers 38 spectrophotometer 38 Lick Observatory 38 spectroscopy 38 beamline 38 mass spectrometer 38 Image Sensor 38 Laser 38 infrared telescope 38 optical microscope 37 halogen lights 37 lidar 37 femtosecond 37 Raman spectroscopy 37 infrared wavelengths 37 hyperspectral 37 CALIPSO 37 Gravity Probe B 37 optical 37 precision optics 37 laser scanners 37 VISX 37 viewfinders 37 observatories 37 Pulsed 37 laser scanner 37 Carl Zeiss 37 JEOL 36 Advanced Camera 36 laparoscope 36 X ray diffraction 36 wavelengths 36 Spherical 36 spectrometers 36 Fluorescence 36 spotting scopes 36 electron microscope 36 gamma camera 36 transmission electron microscopy 36 fluorescence microscopy 36 Imager 36 mass spectrometers 36 arrays 36 Atomic Force 36 Liquid Crystal 36 HRSC 36 supernova remnant 36 Arecibo Observatory 36 synthetic aperture radar 35 Electrostatic