The 35th Scavenger Hunt had a very colorful theme, because there’s all colors of the rainbow in it, and then some. It took me a while to manage to find a way to get a set of pictures that would look like a proper set. My first idea was to try to do something around food photography; some of the colors dissuaded me. I finally landed on the idea of doing something I had wanted to do for a long time: playing with water and oil and soap to make BUBBLES. Not all the pictures have all these components, but I tried to keep a uniting “bubbles/droplets” theme while trying to provide some variation on the technique to get cohesive, but different images.

Coming up with Indigo took me a long while, mostly because I’m not even entirely sure how to DEFINE indigo (And, apparently, I’m not the only one: Indigo#Classification as a spectral color.) The color definition seems to vary between “dark blue” and “blue with purplish hues”, and then whatever is dyed with indigo dye can also end up in various shades of blue. I’m pretty sure this is a word I never use spontaneously when talking about colors. I did want to go vaguely in the direction of “between dark blue and purple”, but I also didn’t want to do something that would be confused for purple. All in all, this means that the “indigo” picture was one that I left for the end of this Hunt.

It also meant that I needed to find something in the correct hue for the pictures, and that was not obvious either. I finally noticed that our dinner trays are somewhat in the blue/purple/indigo shades, and that’s what I ended up using as a background. I used significantly more dish soap for this image than for the others, so the bubbles are very distinct; the sadder point is that there’s a few spots of larger visibly soapy bubbles, and I would have preferred the picture without them, I think. I still very much liked the effect, especially around the white border, that seem to give a lot of depth to the bubble; this made me keep more of the white background in the final image than I was initially planning to.

Camera	Pentax K-1 II
Lens	smc PENTAX-D FA MACRO 100mm F2.8 WR
Focal length	100 mm
F-Number	F/4.5
Exposure time	1/200
ISO	800

The complete Scavenger album is available here: the Indigo album.