It's the final day at West Dean, and the weather is dull and overcast. I was imagining this was the end for garden photography, but actually Jacqui sent us out once more (protesting "I just felt it spit on me") to tackle photography in low light.
I FINALLY FOUND OUT HOW TO USE APERTURE AND SHUTTER SPEED
Look at these two photos of the blue and yellow border (above). On the top one, the aperture is set to 5.6, so that the depth of focus is very shallow. This makes the michelmas daisies in the background out of focus, concentrating the eye on the foreground's pale yellow daisies instead.
The second photo shows the same view, but with the aperture set to 16. In this photo, the depth of focus is much deeper, and so more stuff is in focus at once. The problem now is that the photo looks (to me anyway) "messy", full of distracting detail. I prefer the first snap, which lets the eye settle on the foreground detail while leaving the lilac colour to provide a foil.
The point is, though, that for the first time in my life I have a choice about this.