O – bands. Objektif

Years active	1988–1996, 1998–2000, 2004–present
Genres	Hard rock, Heavy metal
Current members	Vecdi Yücalan – vocals, guitar Çağlar Abanoz – guitar Umut Mutku – guitar Murat Tükenmez – bass Onur Akça – drums
Former members	İbrahim Cantay – vocals Cankut Bayhan – guitar Faruk Kavi – guitar Hakan Şavklı – guitar Mahmut Asan – keyboards Süha Duran – keyboards Volkan Uzunhasanoğulları – keyboards Bülent Güven – keyboards Toygar Işıklı – keyboards Umut Arabacı – bass Başat Karakaş – bass Tayfun Çubukçu – bass Ferruh Bonabian – bass Tuncay Zigaloğlu – drums Alişan Topaloğlu – drums Alpay Şalt – drums Taner Keser – drums Gökçe Dayanç – drums
Discography (Studio albums)	Tımarlı Hastane (Timarli Hospital) (1990) Hayal ve Yaşam (Dream and Life) (1993) Kuşkular (Doubts) (1996) Künye (Tag) (2000) Sokağın Sesi (Sound of the Street) (2007) Halkın Sesi (People's Voice) (?)

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