|
Leon, Ha Hb So OIII are bandwidths of light which are beyond visible light and below infrared light. A modified camera can detect this light and records it in the red pixels on it's sensor. Using filters to capture these various light frequencies allows you to map these channels to different colours in post processing, resulting in some of the amazing images we see today.
You'd really want a mono camera to do it justice as your modified canon can only see them in it's red channel which is only 25% of the sensor. This means exposure time needs to stepped up by 4x when using a colour camera.
Last edited by Tandum; 10-10-2008 at 02:10 AM.
|