What is the ruling on working for a company that sells and markets photography products (films, cameras, and studio equipment) given that the buyer's intended use is unknown?

It is permissible to sell cameras if the purpose is lawful, such as photographing buildings and official documents. However, if it is known that the buyer will use them for unlawful purposes, such as photographing women or musical concerts, then selling them is prohibited because it constitutes cooperation in sin and aggression. It is advisable to seek other permissible and undoubted sources of livelihood.