As your camera has only an HDMI output, you will need a capture device to use the AG-HMC40 for streaming. If your computer has a Thunderbolt input, the Black Magic Intensity Extreme
might be your best bet. You could also look into the Black Magic H.264 Pro Recorder
for input via USB 2.0, however we recommend a powerful encoding machine (i5-i7, 8GB RAM) when using this device.
Another option would be outputting the camera directly to a Livestream Broadcaster
which will allow you to bypass both the capture card and the computer, but will only allow you to stream in a single bit rate.