I am a Dutch citizen, but I was born in Indonesia. I got a PhD degree of Astronomy in Cleveland, Ohio, USA, and worked as Professor of Astronomy at the University of Indonesia up to 1968, and afterwards, at the University of Amsterdam, until my retirement in 1993.
In 1994 I began to learn photography seriously. From the beginning on I am interested in creative experimental work. In 2000 I realize that for making creative images the digital method has advanced possibilities. For this reason I stepped over to the computer and accompanying hardware and software, for the realization of my creative experimental ambitions. Often, I make my digital compositions in series, sometimes in sequences. However, I also make single digital images based on different themes. My work until now is exhibited in my website, where I also have published photographic work of many guests.