Many of the latest system cameras, such as Panasonic Lumix DMC-GH2, have a possibility for a remote control. Panasonic only offers one with a 1.5 meter wire and 3rd party manufacturershave somewhat too complex systems which use radio waves to omit the wire.
How about using a mobile phone?
The flow could be the following:
- Set the camera to a fixed position
- Connect mobile phone to the camera
- See in the phone screen what the camera is seeing
- Trigger focus and shutter from the phone
- Receive a thumbnail of the image captured by the camera to the phone
- Adjust zoom and other possibly supported features to be listed…
A mobile phone or more specifically, a smart phone, often comes with the possibility to connect via WLAN. That suggest that the phone supports connection to a 2.4 GHz operating receiver. Many of the 3rd party remote controls use this frequency.
If the phone could connect and load data from a WLAN connect device, what would be needed at the other end, attached to the system camera?