The Calumet Universal Cable Release when combined with one of the Calumet Camera Adapters (sold separately)* will allow you to avoid camera shake that is common when pressing the shutter release with your finger. The cable release focuses and releases the shutter in one stroke and also features a convenient sliding lock for timed exposures. It's 39" cord is coiled making it easy to store.
*This cable release requires one of the following adapter plugs for use with your DSLR: