Zika took up photography in 1994, and a year later won first place in the sports category of the Czech Press Photo Contest.

In the spring of 1997, Zika opened his own studio in Prague, began shooting fashion and commercial photography, and received his first large commissions.

In autumn 2000, he was selected among six photographers to represent the Leica Camera brand at photokina 2000 in Cologne, and was included in their worldwide calendar.

His photographs were later displayed at the Black and White Past and Present gallery, organized as part of Interkamera 2006, featuring three classic Czech photographers (František Drtikol, Václav Chochola and Josef Sudek) and three representatives from the current generation (Jan Saudek, Robert Vano and Zika).

The film was later included in the Official Selection and screened at the 28th edition (2010) of the Milano International FICTS Festival of Sport, Movies and TV.

In October 2010, he published another book, In The Shadow of Light, featuring portraits and landscapes as well as the still predominant artistic nude photography.

In February 2012, Zika was awarded the METRO Zlatá pecka 2011 award for the TV spot "Anthem", which he directed and created for Mountfield a.s. Later that year, he directed a feature-length documentary film, composed of collected footage sent by the Czech public, entitled Země česká, Domov Tvůj!

In June 2004, Zika was arrested and remanded in custody for three months in connecting with an alleged sex trafficking operation centred around the Prague branch of the Slovak ELI modelling agency,[2] before later being acquitted at trial.