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We report new precision measurements of the $^{20}$Ne--$^{22}$Ne isotopeshift for several transitions, as well as state-of-the-art, \textit{ab initio}field-shift calculations. Our results are combined with historical measurementsin a global fit to obtain the isotope shifts of all fifty low-lying neon levelswith high precision. These level shifts show a wealth of electronic, nuclear,and relativistic phenomena. Relying on the analogy between mass shift andfine-structure operators, we explain this plethora of neon level-shiftsutilizing a small number of effective parameters in a global parametricinvestigation. This investigation provides a birds-eye view on the isotopeshift phenomena in noble gasses. From this vantage point, we reinterpret everyeffort made to calculate neon mass-shifts \textit{ab initio}, and show that aremarkable agreement between experiment and theory is obtained.

Isotope shifts in $^{20,22}$Ne -- Precision measurements and global analysis in the framework of intermediate coupling