One of the features that the iPhone camera is missing is the ability to control exposure time. Although there are now several other apps that “trick” the iPhone’s sometimes cranky camera into giving you some control over shutter speed, Slow Shutter Cam by Cogitap is a great app that adds the ability to take long-exposure photos, similar to using the bulb or long exposure function on a film camera. You can use it to create interesting motion effects in-camera, create low-noise low light photographs, and create cool light trail photos that you can only do by leaving the shutter open for a long time. It does all this and saves at full-resolution.

It takes some time and experimentation to learn how to get the best results from all of Slow Shutter Cam’s features, but it’s worth it. With the right gear, the right settings and a tripod, you can do things with Slow Shutter Cam that few other apps can do.

Slow Shutter Cam is FREE for the next few hours in the App Store — a 24 hour reduction that started last night. That’s a discount of $1.99. Although it’s been discounted several times, this is the first time in well over a year that this app has been free. This discount will go away fairly quickly, so grab this one now if you don’t already have it.

Requirements: Compatible with iPhone, iPod touch (4th generation), iPad 2 Wi-Fi, iPad 2 Wi-Fi + 3G, iPad (3rd generation) and iPad Wi-Fi + 4G. Requires iOS 4.0 or later.

Slow Shutter Cam - Cogitap Software