Such speculations, happily, lent themselves to demonstrations in the planetarium theater, using the great projector that — in its original form — was devised by Germany's celebrated Zeiss ...

Over the past two years, the Johannesburg Planetarium has undergone extensive renovations. This included the replacement of the old analogue Zeiss projector with 10 high-resolution digital projectors.

But additional contributions were needed for the Zeiss projector, whose standard price ... I hope that the planetarium when completed will give many people that view of life.” ...