An earlier work on a Mattauch‐Herzog type mass spectrograph with a two‐stage electrostatic field is extended to investigating the conditions for simultaneous elimination of &agr;&bgr; and &bgr;2aberrations for all masses. In the course of study, the condition for obtaining a real image of ion source between two electrostatic fields is abandoned, and by this extension two series of solutions are found in neighborhood of &Jgr;e2=&pgr;/√2. The design parameters are numerically computed and tabulated for several examples. The &agr;2aberrations are calculated and the total image defects are evaluated and found to be very small for a wide mass range.