Translation:I am going to buy a camera for my daughter.
That's because the translation of the preposition 'à' into English is not one-to-one. 'à' is being used here to mark the indirect object of this sentence. In the context of an indirect object prepositional phrase, English makes distinctions about which preposition to use based on the type of indirect object that French doesn't, therefore in some cases 'à' is translated as 'to' and sometimes 'for'.
Two questions. 1. Is it a still camera as opposed to a video camera? I'm a native English speaker, and I've never heard the term. 2. What is the meaning of this sentence with the preposition to, and more importantly, with the preposition à? Could somebody please provide an alternate translation?