Specify your desired LRIS configuration: (click here for help)

• Trapdoor is unchanged open closed
  
• Slitmask is unchanged direct long_0.7 long_1.0 long_1.5 long_8.7 sp1-grid im2-grid custom
  
  Name of custom mask is
  

  Filter is unchanged clear B V R I GG495 OG570 RG850 custom
  

  Name of custom filter is
  

  Grating is unchanged mirror 150/7500 300/5000 400/8500 600/5000 600/7500 831/8200 900/5500 1200/7500
  

  Grating tilt is unchanged set via wavelength set via angle
  

  Wavelength is Ångstroms
  

  Angle is degrees
  

  Internal lamps unchanged turned off turned on
  

  Turn ON lamps HgNeArHalKrXe
  

  Red focus setting is unchanged automatic manual
  

  Manual focus is microns
  

  Readout mode is unchanged oneamp twoamps
  

  Readout window is unchanged fullframe longslit