Project 3: focus with different apertures

The object of this project was to show how 'depth of field' changes with aperture.

Once again I used the same 'still life' as in the previous project. As instructed I focused on the middle bottle and using 'aperture-priority' mode I took the 3 photographs at the widest aperture, middle aperture and smallest aperture.

23mm, 1/6 sec, f3.5, 100 ISO

23mm, 1/6 sec, f9.0, 100 ISO

23mm, 1/6 sec, f22.0, 100 ISO

At firstI found aperture confusing, it didn't seem to make sense that f/1 had a big aperture and f/22 had a small aperture but I've got the hang of it now.

Photo 1 has the middle bottle in focus, in photo 2 the bottles are more obviously in focus and finally in photo 3 all the bottles are in focus.

I think I'll try this again when I have time with something that will show more obviously 'depth of field'.