# #Mon Aug 09 12:01:57 CEST 2010 Slide__Io0a8KOdEd-WfYQ0GneCwQ_title=Cut through the Single-Field Condensing Lens and Objective with Polschuh Lens and Specimen Gate Slide__Io0a8KOdEd-WfYQ0GneCwQ_subTitle=From\: Ernst Ruska\: \u00DCber die Aufl\u00F6sungsgrenzen des Durchstrahlungs-Elektronenmikroskops, Optik 22 (1965) p. 340 Slide__Io0a8KOdEd-WfYQ0GneCwQ_footer=On loan from\: Fritz-Haber-Institut of the Max Planck Society, Berlin