Here are some of my best camera rotations with a Vario-Spiegel-Vorsatz teleidoscope and a tri-facet prism combined. The light source is coming through optical fibers and the rainbow effects are due to the use of diffraction grating in front of the lens.
On these ones I used a five-sided prism instead and the light source is daylight through a small slit with diffraction grating strategically placed to bring out the pink tones.
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