How do I take very long exposure photos?

Question

I would like to take some long exposure photos using my Android phone (Moto DROID v1 running Android 2.2.2) of the night sky. I experimented with the settings for the default camera app, and I found that I can set the focus to infinit, but the exposure time has only three setttings: 0, +1, and +2. Setting the exposure to +2 I can get a recognizable photo of a full moon, but I am unable to capture a field of stars.

Is there any way to extend the exposure time beyond +2?

Answer 1

You cannot do this from with Settings of the default camera.

You could look at another camera app like:

Camera Streak : Blog: http://www.addictivetips.com/mobile/camera-streak-for-android-simulates-long-exposure-photography/

Or you could roll your own, here is the relevant details you need to change:

http://developer.android.com/reference/android/hardware/Camera.Parameters.html

setExposureComponent()