Collin

Hi, you may already be planning to  discuss this with your audience:

I remember the first galaxy I viewed through a telescope and being mildly disappointed that I couldn't see it in colour  

2 minutes on the difference between the human eye and a camera might be useful.

Depending on where you talk about it in your timeline, you can use it or refer back to it as you segway into  the "image processing" section ?

Then you can really wow them when they see your dull grey image get transformed  

Just a thought,

Collin