Absolute sharpness

Derelict barn at The Roaches in the Peak District (Staffordshire) Nikon D610, 16-35mm, 3sec at f/18, ISO 100

Sharpness and depth-of-field, or indeed a lack of it when shooting some subjects, have long been a creative way of controlling what the viewers of images are drawn to. And for the majority of landscapes, a large depth-of-field with front-to-back sharpness is often preferable. The only problem is, it’s not always possible to get everything in focus; some parts of the scene