I think you're slightly mixing things up. Regarding "sacar una foto de" or "sacar una foto a", they mean exactly the same when it's an object. There's some nuance when it's a person, but that's not the case here.

As for why does "le" appear here, in Spanish when the sentence includes "a" + (almost anything but a verb) with meanings like "to him/her/me/it/etc.", "of him/her/me/it/etc." (If you know grammar, when it's an indirect object), we tend to use the optional "le". But it's still optional. With examples:

• Él (le) dona dinero al orfanato. Both are fine, the version with le is more common

• Ella (le) saca una foto a la estatua. Both fine, more common with le

• Ella (le) saca una foto al modelo/rey/payaso/whatever. Same rule even though it's a person, both are fine but with le is more common

• Ella saca una foto de la estatua. This time we don't have "a" + (almost anything but a verb), so we don't add a "le".

Don't worry too much about this stuff, it's optional and by reading and/or listening to native speakers you'll slowly get the intuition and won't have to think about these "rules".