I would not use a mini to fire any camera. And by "fire" I don't know if you mean use as a trigger or receiver. If you mean as a trigger, it will work, but likely not as reliably as you might like. If you mean as a receiver, I don't believe it has that capability.
>I need to buy a cable so I can use my Flex TTl5 to fire my >D3S. > >Does any one off hand know the model number I need so I won't >have to contact pocketwizzard. I would like it to Pre fire >someone said that is the best and fastest. > >Also can the PW Flex Mini fire the Nikon D3s? > >thanks Tom