Learnt photography by himself since Junior High School with Fujica M-1 at least 1985, then he bought SLR Camera with brand Sea Gull when studying in Senior High School, 1987 and continued with college in STAN (Sekolah Tinggi Akuntansi Negara) in 1990 until 1993. Join with college magazine, Majalah Purnawarman.

First time interested in photography after graduated Senior High School, when he learnt how to process black / white film from Mr. Purnomo, a specialist for express photo service in Wonosari Bus Station, Gunungkidul, Yogyakarta.  When he studied in STAN, he learnt photography by read a book from Pr. Dr. R.M. Soelarko, Foto Indonesia Magazine (which only printed 3 edition) and Fotomedia Magazine (which published without routine schedule). But the book he really likes was MAT KODAK by Ed Zoelevardi. With his interest of photography, he few times studied in College Journalistic Workshop in Jakarta.

In 1993, joined with Fotomedia Photography Club after buy used camera, Nikon 801s and Sigma Lens 27-70 f2.8 APO.  In this club, he has formal photography learning and joined monthly routine meeting with other member and workshop.  In 1996, he made photo club in Economic Faculty at University of Indonesia, Extension Program and have several time conducted photo exhibition.

Active in Digital Era after buy Nikon D100 in 2003, and active in many photography forum such as Fotografer.Net (FN), ayofoto.com, forum kamera, artphotomania.com, jakartaphotoclub.com and many other.

From May until August 2010, has been chosen to join with Special Class Photojournalism in Galeri Foto Jurnalistik Antara, Jakarta.  And from late 2011 he has trusted by Fujifilm Inc. as X-Photographer (Official Photographer of Fujifilm)

The activity right now beside work as employee in state holder company becomes photography teacher in some Photo Course. He is also offered to be a mentor in many Photography Course and Workshop, Mentoring for Photo Hunting, and also building his website : www.gathotsubroto.com to share the photo, and become online stock photo for many purpose. He also design a studio in his house for studio photography for Bintaro and Serpong photography enthusiast and become a class for Private Weekend Private Photography Course.