Nikon ML-L3 Infrared Remote
Don’t have your Nikon ML-L3 IR remote handy? No problem. Did you know that there are programs that you can download for your smart phone and use its infrared capability to trigger your camera shutter?
You can even get more capability than the ML-L3 has, such as timed triggering and sound options. You can also select other camera remote identities, such as Canon, Olympus, and Sony.
I downloaded Camera Remote Control from Dev Null using Google Play, but there are other choices as well.
How cool is that?
When I use a tripod, I always trigger the shutter with an IR remote. I configure (via the camera "Shooting" menu) the "Remote control mode (ML-L3)" and set it to "Remote mirror-up". The first press of the remote (or on the phone app) will raise the mirror, and the second press will release the shutter. This way, you can wait for vibrations to die down before releasing the shutter.