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Photographing children's play bubbles - A close up still-life technique to take rainbow-colour photos of soap bubbles.
Having discovered the work of Karl E. Deckart, Simon set about taking Soap Bubbles and after hours of attempting to achieve similar quality he has now developed a technique to achieve decent results.
Here he explains the process, which is great fun on a day when you can't get out to do your normal photography.
What you need:
- Soap Bubbles, I bought these from Toys R Us - £ 2.50 a bottle.
- Glycerin, available from Boots or grocery stores - about 90p per bottle.
btw Glycerin is one of the best cough and sore throat medicines ever and is the base for the majority of those ones that cost 4 quid a bottle, a big saving without the fancy (and expensive) flavouring.
- Some foam - I bought a pack of sponge cloths at a cost of about a quid.
- Some Garden wire or an old wire coat hanger.
- A pair of sharp scissors - be careful kids!
- Some sticky back plastic - Sellotape.
- A container, vase or jug.
|Soap Bubbles from Toys R Us and
Glycerin from Boots the Chemist
|Garden Wire and sponge cloths|
|Start by shaping the wire/coat hanger into a square about 5 inches by 5 inches, making sure you leave a good 8 inches or so overhang. If using a coat hanger you may need a pair of pliers to help with this, the garden wire is easily done by hand.
Bend the wire into a rough 5x5” or so square
|Cut your foam into strips||Wrap the foam around the wire|
Now the fun begins...
Pour your bubbles into a container, make sure this is deep enough for you to be able to 'dip' your wire frame in and cover it fully. I found the plastic containers that you use to store morning cereals in ideal for this. You can start now if you want, however, a straight bubble mix only lasts about 30 seconds to a minute and it is very hard to get the shots in that amount of time. The 'secret' is Glycerin, add this bad boy to the mix and bubbles last for a good 3 to 4 minutes. If you blow them they are much bigger too, a good thing to remember the next time your kids want big bubbles ;) Mix approx 200ml of Glycerin per 1 litre to 1.5 litres of bubbles, you may find a better mix than I did, but this is how I did it and it worked well.
Place a black background behind your bubbles and shine a light through it and you will see some amazing colours and patterns taking place. It is this that we want to photograph using a macro lens.
The iridescent colours are caused by interfering light waves and vary depending on the thickness of the film, again the glycerin helps here as it thickens the mixture. This phenomenon is not the same as a rainbow, but rather the same phenomenon that causes the colours in oil on a wet road for instance.
So the setup then, get a piece of black card or cloth and place it behind the surface you are working on. Place the bubble frame that we made in front of this at a rough 45 degree angle to it. Now place your light source at a 45 degree or so angle to this. Finally set your camera up at a 45 degree or so angle to the bubble.
The light source needs diffusing and softening so if you have studio lights put a softbox on or alternatively place a piece of white paper in front of your desk lamp etc.
I found it easier to bring the container of mixture to the frame as opposed to the frame to the mixture, so dip your frame and I suggest you watch it and learn the first time. For the first 30 seconds or so, the bubble appears somewhat colourless and boring, this is because the liquid is all evenly distributed.
After 30 seconds it starts to get interesting and colours and streaks appear and start moving around inside the bubble.
Over time and as gravity starts to work on the bubble you start to get some fantastic striations across the surface and it all starts to really slow down its movement.
More colours begin to appear and the patterns become much more defined.
As the bubble fades you get a lot of black
appearing (the background showing through),
this is caused by the soap sinking and being
left with just a glycerin and water surface.
Finally the bubble bursts and so it's time to
dip it in your mixture again.
|Interesting things to try
I've had hours of fun doing this now and just know I'm going to have more hours doing it too. No two bubbles are ever the same.