I recently discovered my girlfriend's (relatively cheap) camera has a long-shutter night mode. With this I made a few light writing experiments.
For instance like this:
Basically, the bad thing about the camera I'm using however is that the max shutter time is only 16 seconds, a relatively short time for light writing.
So, is it possible to "combine" two light writing photos so that there is more time available? Also, out of curiousity, is there any way of emulating a long-shutter mode for the purpose of light writing with a camera without a long shutter mode, such as my cell phone? (combine the frames of a video into a single picture or something?)