Fun With Retarders

Finally learning about retarders – and having fun doing it.

I’d thought that there was something technically unique about retarders – that they had to be very specific filters. It wasn’t easy finding an article that explained it in everyday language.

Google searches for retarders usually return sites from Olympus and other optics companies.  These are aimed at people who have an understanding of optics. Too technical for me. A post on the Facebook group Crystal Art Photomicrography made clear the basics.

A retarder modifies light waves from the polarizer. It is as simple as using a piece of clear plastic over the polarizer. Rotating the plastic creates different modifications that change the colors of the image. Retarders can be stacked to create more variations. Simple!

 Additionally, I’m experimenting with adjusting the condenser diaphragm adjust contrast.

As I was saying…

 

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I was talking about condensers. I’m still learning how to optimize its use but I’m getting there.

After my last post in June, I had a long writer’s block. In addition I continued my fascination with playing “Mad Scientist” mixing various substances to see what image is produced.

I have unofficialy adopted Loes Modderman as a mentor. She’s spent more than 50 years experimenting with chemicals and combinations; and she is a wonderful teacher. See her website at https://www.scienceart.nl/  

She is the founder and frequent contributor the Crystal Art Photomicrography group on Facebook. Her comments are always clear and informative.  There is also a 7-part tutorial posted in that group. I’ve learned so much from her.

It has been tempting to add to my chemicals. On FB, I see beautiful images produced by exotic substances.  I’m trying to hold myself in check, using what I have in different combinations.  Self-discipline is not one of my virtues.

L-Lysine, water Polarized

Boric Acid, alcohol Polarized