qDslrDashboard is an application for controlling your Nikon Canon DSLR or Sony mirrorless camera.

For USB connection an USB OTG adapter is needed and the device must have the USB host function.

qDslrDashboard home: http://dslrdashboard.info
FAQ: http://dslrdashboard.info/phpBB3/viewtopic.php?f=6&t=1574

qDslrDashboard feautres:
Multiple camera support
Remote capture
Synchronized capture
Connect to DSLR using protable wireless router (ddserver)
Change camera properties
Browse images on camera
Transfer images from camera to Android device
Preview images (jpg and raw)
Live view
Live view histogram
Manual focus movement while in live view
Start movie recording (only on camera models that support it)
Custom bracketing
Focus stacking
Time-lapse (simple and advanced with control file and ability to move focus and send commands to Arduino)
Sound initiated capture (with spectral display and frequency/intensity selector
DoF calculator.
Rule600 calculator.
Sky stacking helper.
Custom profiles.
Remote control over wireless network (Android devices must be on same network)
Support for WU-1a/1b adapter (PTP/IP)
LRTimelapse screen for auto holy grail timelapse
Dynamic Perception NMX motion controller support over Bluetooth LE
Interval controller.