A professional photographer who specializes in portraits and stage photography; he photographs everything from theater, dance to opera and especially music.
His works have been published in all the major magazines and outlets in Israel and have been exhibited in several exhibitions. In 2006 Harvard University purchased the archive of his works.
Zwecker began his professional life as a military
photographer, as part of his mandatory service in the army. When his military service was over, he started working as a full-fledged photo-journalist for 'Hadashot Daily' Newspaper for ten years.
Afterwards he developed an independent career as a still photographer on TV sets, documentaries and movie productions.
For the last 15 years he has been working for all the major theater companies, dance groups, music festivals in Israel and serves as the official photographer of the Israeli Opera.