You can also look into using a technique called hyperfocal distance to expand the range of what is in focus.
There is also another possibility using PhotoShop in which many images are taken and spliced together resulting in an expansion of depth of field.
And as you have discovered, F 5.6 has a limited depth of field with F 22 being greater. The down side is that a smaller aperture requires more light either in terms of a longer exposure or a much brighter light source.
|