Questions & Answers about El trípode viejo, lo usamos fuera.
Why is the pronoun lo in this sentence when we already specified El trípode viejo?
Could I just say Usamos el trípode viejo fuera?
Yes, that is the standard, neutral word order. Moving El trípode viejo to the front changes the emphasis. The left-dislocated version translates closer in feeling to "As for the old tripod, we use it outside."
Is the comma after viejo required here?
Yes. When you move a direct or indirect object out of its normal position and place it at the very beginning of the sentence for emphasis, you generally must use a comma to separate this topic from the main clause.
Why use fuera instead of afuera for "outside"?
In Spain, fuera is the standard adverb for "outside" when describing a static location (where something happens or is located). Afuera is sometimes used with verbs indicating movement towards the outside, but in Spain, fuera is heavily preferred for both. Note that in many parts of Latin America, you would likely hear afuera used here instead.