Photographs copyright: DAVID McMAHON
Sometimes the strangest things catch my attention. Shapes, shadows, patterns, unusual angles, objects in low light, objects in harsh light - you get my drift, don't you? It's all about experimentation. So a few hours ago, I 
looked out the window at work and saw this great angular shadow cast by the sun in a cloudless mid-morning sky.
I had to use the zoom to compose this shot, so that the two buildings on either side were completely excluded from the frame. Using the 18-125 lens on my Pentax K100D, I was able to shut out everything else and concentrate just on the white, black and blue of the central image.
It's not the easiest thing to do, shooting through a none-too-pristine office window, I was still pretty pleased with the result.
I was turning away to return to my desk, when I suddenly realised there was an even better shot just waiting to be taken.
That's when I took the vertical frame you see at left. Just the minor depth of extra perspective brings a bigger palette of those three colours - and the other added advantage is that you can see the bottom of the reflection, which immediately brings to mind the thought that it is somehow menacing and Darth Vader-like.
I guess that's why I love photography, hey!