{HEAD ~ A primary object} of {TAIL ~ the present invention} is to provide a relay optical system for non flexible endoscopes which has a wide range of application, can be manufactured at a low cost and has longitudinal chromatic aberration favorably corrected in the relay optical system as a whole 
of
{ HEAD ~ A primary object } of { TAIL ~ the present invention } is to provide a relay optical system for non flexible endoscopes which has a wide range of application , can be manufactured at a low cost and has longitudinal chromatic aberration favorably corrected in the relay optical system as a whole
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH