Optical phenomena that can be photographed?

[!Live_4Ever!]

Hey, I am doing this physics project where we have to take pictures of various optical phenomena.

I was wondering what kind of phenomena can be photographed easily. One thing I thought of was total internal reflection, but I'm pretty much stuck on everything else. I need two different kinds of optical phenomena for this project...

Can anyone help me out here?

Thanks in advance =)

 

[hunter151]

Interference can be easily photographed by looking at some oil on water. The oil forms a thin film causing the interference. Also can be done with some soap bubbles or something.

 

[kkrizka]

Putting a camera in front of a diffraction grating and pointing it at some light is quite fun. I remember doing that in my physics lab.

 

[Chi Meson]

Whatever can be seen can be photographed. Furthermore, with the right instruments, you can photograph light in the infrared and ultraviolet wavelengths. Eyeballs are very much similar to cameras.