Tobacco Hornworm
One serious challenge of shooting objects at high magnification is working with an increasingly limited plane of focus, also called depth-of-field.
“Normally you get only a slice of your subject in-focus,” DeZeeuw said. “The rest is fuzzy,” he says, because of the physics of light traveling through a lens with a wide aperture.
Using a process called focus stacking, however, photographers can merge digital images to expand their depth of field. Gledhill combined five separate images of the tobacco hornworm (above) to widen the in-focus portion of the image.
Image: Flickr/Linden Gledhill
