Use output pin to control switch/short 2 wires

Hello everyone,

I'm trying to interface with a remote camera shutter. I have figured out the camera has a button that when pressed it shorts 2 contacts. I have soldered wires onto the contacts, and I can touch the wires together to get the camera to take a picture. But I cant figure out how short the 2 wires on command from the Arduino.

Search for "button press."