With the ioShutter Shutter Release Cable with N3 Connector, you can use your underachieving device to control your DSLR camera--Timelapse, Bulb, Timer, Sound trigger and a ShakeToTake movement trigger.
Using this 2.95' (90 cm) release cable and the free app (which can be downloaded from the Apple App Store) on an iPhone4, iPhone 3GS, iPhone3, iPod Touch gen 4, iPad1, or iPad2 (also compatible with Android), you have control over your DSLR. Timer, Bulb, Timelapse, Sound Trigger and ShakeToTake functions are available and will operate together - use a Sound trigger for a Timer exposure, use Timer for a Bulb exposure, or ShakeToTake to trigger a Timelapse exposure. This release cable is also compatible with the Pro App available for sale separately in the App Store. The Pro App expands the functionality of the modes.
This cable is compatible with a variety of cameras. These cameras have been lab tested for compatibility: EOS 1DC, 1DX, 1DS, all EOS1D cameras, all EOS 5D cameras, 6D, all EOS 7D cameras, EOS 10D, 20D, 30D, 40D, 50D, 70D, EOS D60 (from 2002) EOS D30 (from 2000) and the Canon film cameras EOS AE2, EOS 3 and EOS 1V
EOS Digital Rebel series
Elan II / IIE
(dependent on your back)