I say cross-polarization and people ask me about bees and plants, its polarization not pollination! Yet, I do miss those bees and the flowers shots, I must go hunting soon!
This week’s experiment is in cross-polarization. If you’ve even wore polarized sunglasses (and I haven’t because I wear spectacles already), you might have seen strange patterns on car windshields, the polarised sunglasses are revealing areas of the glass that was put under stress during the manufacturing process, the patterns resulting when using the polarised sunglasses are a phenomenon known as “birefringence”.
The important part of all this is that the results have a very cool effect when combining a polarised filter on the camera with a polarised light source through a transparent material that has gone through a stress-related manufacturing process.
Just for experimentation, I’ve used a transparent plastic ruler.