The day had been partly cloudy with no hint of rain when out of nowhere this little storm showed up. From the house, I grabbed the 24-70 f/4 L IS, installed a CPOL filter, mounted the lens to a 5D Mark III and ran for the clearing.
I quickly framed and shot a wide variety of images. For this particular composition, I used the in-the-shade section of mountain as a clean base with the rest of the details creating an overall balance to the image. I shot what looked right to me, but many of the lines fall into the rule-of-thirds. The warm color is courtesy of the setting sun.
The f/5.6 aperture is rather wide for an all-in-focus landscape photo, but with no close subjects, this aperture provided adequate depth of field. With the no-time constraint this rainbow opportunity provided, I relied on image stabilization to capture a sharp 1/20 second image at 70mm – in the wind. I clone stamped a few blowing leaves out of the foreground of this image, but some captures have with lots of blowing leaves that better reveal the windy conditions.