Having found a co-operative gull and chick, I was faced with he problem of getting a picture of both birds in focus. Light levels were quite low and I was wanting to isolate the birds form the rocky background so a wide aperture was needed for both these reasons. With the two birds being at different distances I was faced with choosing to keep one or the other sharp or else using focus stacking of 2 images to capture both of them sharp.

I took a number of images focussing on the birds individually while keeping the same composition. I chose the 2 with the best poses and opened them as 2 layers in Photoshop and then masked the 2 together to maximise sharpness  of the birds. Ideally a 3rd image would have been good to maintain sharpness between the birds but the two image stack works adequately.

Nikon D800, Nikon 500VR. ISO 1600  1/1250s f4 Monopod