Ferenc opened two shops, at two locations in the city in Damjanics Street in 1892 and in Kossuth Street in 1894. The last shop he opened was in the residential house of Bódog Czorda. He also had a subsidiary studio in Sombor. Although his shop window decorations and business offer indicate that his primary clients were the higher classes of the city elite, the documents on and the photo-archive about his work show that Pietsch was one of the few photographers who left an impressive mark by his photos about the working class in Subotica.e was one of the most popular photographers at the turn of the centuries. The papers often wrote about his works and his Brazilian origin.
His was the family photographer of the Schaumburg-Lippe princely house, and for his numerous family photos and their quality, he was permitted to use the prestigious title of the family's official photographer on his logo.
There are no data, when his studio was closed, however “granny Pietsch” was a lady, who taught the craft to many photographers.