The models VIIIa and VIIIb were the first projectors with interchangeable elements. Three-lens condenser, top detachable for the easier removal of the lamp, centred 100 watt lamp for cine fitting, for direct connection, reflector, one interchangeable condenser for different focal lengths of the lenses. The VIIIb is not designed for use with the Leica lenses. Only projector lenses Milar (80mm) or Dimax (120mm) must be employed. Film attachment or lantern slide attachment with slide changer for 2 x 2 inch.