Macro photography reveals a world we walk past: pollen grains, compound eyes, dew on spider silk. It's also a world of millimeter-thin depth of field.
Gear options
- Dedicated macro lens (60–105 mm for flowers, 100–180 mm for skittish insects): sharp at 1:1 magnification with working distance.
- Extension tubes: cheap, glass-free spacers that make any lens focus closer. The extension tube calculator shows the magnification you'll get.
- Close-up diopters: screw-on lenses, easy for telephoto zooms.
Magnification and effective aperture
At 1:1 (life size) a subject 24 mm wide fills a full-frame sensor. Close focus also darkens the image: f/8 marked behaves like about f/16 at 1:1. Use the macro effective aperture calculator to see effective f-number, light loss and depth of field — often under a millimeter.
Depth of field strategies
- Align the sensor parallel to the plane you want sharp (a butterfly's wings, a flower face).
- Stop down to f/8–f/16, but beware diffraction beyond the effective f/22 — see the diffraction calculator.
- Focus stack static subjects: many cameras automate focus bracketing.
Light
- Overcast light is soft and even.
- A diffused flash freezes motion and allows small apertures; a large diffuser close to the subject avoids harsh highlights.
- A small reflector fills shadows.
Insects
Insects are calmer in cool mornings, before they warm up enough to fly. Approach slowly, keep your shadow off them, and look for dew-covered dragonflies and butterflies at first light.
Ethics
Don't chill, glue or pose insects, and stay on trails around wildflower meadows.
About 1 min read · Updated 2026-10-20