Technique – Technique begins with “T” and that stands for Tripod. When you’re dealing with paper-thin depth of field, there’s no way you can hand-hold and achieve focus where it’s needed. Keeping the plane of your camera’s sensor precisely parallel with the subject and maintaining a steady distance from the subject are essential parts of macro technique.
- The next two examples show it all. Click to enlarge.
- Left – focused on dollar bill; Right – focused on penny.
- 105mm 1:1 Nikkor macro lens, 1.4X TC, Canon 500D close up lens
- ~2X life size, f/4.8
Why not use a different aperture; one that provides a greater DOF?
- Good question
- Bad result (have you heard of diffraction?)
Of course we could use a smaller aperture to increase the DOF – although that’s not always practical or what we want (if we want selective focus). Here’s what happens if we use a smaller aperture than the f/4.8 used above.
L – f/14; R – f/29. Even at f/29 the problem of the out of focus $1 isn’t solved (and diffraction may be working against us as well).
Here is my 2010 post from which this material is taken.