Do you remember using a crystal prism in science class to learn how white light refracts and separates into different colors? When you shine a white light into one side of a 3-sided prism, the light bends inside and all the colors of the rainbow end up coming out on the other side. Issac Newton originally discovered this in 1666. But did you know you can also use a crystal prism in photography to create really interesting effects?
With your lens hood off, just hold up the prism right against the lens and move it around until you see an effect you like. It will mostly reflect the ground or the sky onto whatever is in your frame. But if you’re in the right light and hold it at the right angle, you can get that rainbow effect from the sun shining through.
It works best is you use manual focus so your camera doesn’t constantly try to focus on the glass and your subject stays sharp and in focus. It will probably take a lot of tries to get the right angle to get an effect you like, but just keep twisting and moving the prism around in front of the lens.
If you want to try crystal prism photography yourself, you can find the prisms on Amazon. This is the one I have and it’s long enough so my fingers don’t get into the shot. Give it a try and create some new interesting photos with the prism. Thanks for reading!