I've just come back of my hols in Southern Africa. Whilst there I tried on a number of occasions to take landscape pictures using my understanding of the theory of the hyperfocal distance. The crude measure (IMO) is to focus roughly a third into the distance and take the photo. This didn't work in practice as my background was blurry. So I tried another two methods a) using a DoF calculator app on my phone - it allows you to input camera, focal length, aperture and subject distance b) focussing roughly 5ft away (read about this method in a photography book). In both cases I again was left with a blurry background. In the end I simply focussed on the far background and this seemed to work. I should mention I tried all methods using AF and MF.
Any thoughts on why only the latter method appeared to work?