Next weekend I am going to be shooting the final images for a competition in October and while I will show you the final result once it was finished, I thought I would also share some of the pre-shoot preparation.
In my final image elements will be flying out of a book and I wanted a burst of light to accompany them. This will be done using a speedlight to provide that part of the light and Cokin filters to colour it. My daughter was roped in to be my model for the day.
I found a couple of old books that no one wanted as I was going to destroy one in the process. In order to create a gap through the whole book the easiest approach was to clamp the book shut and use my jigsaw to cut a section out.
Gaffa tape was then used to secure the speedlight to the book.
I knew that full power would be way too strong at the range so the speedlight was set on 1/32 power and a test show was taken. The result was an overblown image so it was obvious that I needed to dial it down further.
The power of the light was reduced to 1/64 and while this time the light output was still hot but we were getting there. I knew that adding the filter would have the effect of reducing the light.
A Cokin Blue filter was placed over the hole on the inside of the book. This tinted the light but was still not exactly what I was looking for.
I added a Cokin Red filter knowing that the combination should produce a purple light which is exactly what it did.
The final results are still a little hot but I was not worried about that. I now have a good starting point to tweak them on the day of the shoot. Plus these shots were taken inside on a dull day, when the actual shoot will be outside so the natural light will have a greater influence as well.