Back in 2011, Haje Jan Kamps came up with a fascinating idea for a Kickstarter -- the Triggertrap. The idea was to create an interface that would go between a digital SLR camera (DSLR) and a smartphone, with an app on the smartphone to control activation of the shutter on your DSLR. The Kickstarter project was a success, and the Triggertrap is a reality. I had an opportunity to test a Triggertrap and the app with my Canon EOS Rebel T4i DSLR and found it to be a well-designed and implemented product.
Design
The Triggertrap uses a combination of a dongle that attaches to the headphone port of your iPhone and an adapter cable that plugs into the dongle on one end and the camera on the other. The two-part design is quite smart; not only
