Posts Tagged ‘specialized photography’

Mastering Dental Photography: A Guide

Saturday, August 1st, 2015

The bracketing technique requires three pictures to be taken (some digital cameras offer an automatic bracketing exposure). The first picture is captured at what is believed to be the ideal exposure (f-stop); the second at no more than two f-stops higher, and the third at no more than two f-stops lower, than the original exposure. The three pictures will document the subject at a graduated range of exposures, which increases your chances of capturing an image with accurate color fidelity. This technique is useful for capturing tooth shade and for calibrating the camera’s auto-exposure mode, says Remi Goulet of SSFODF, a French Orthodontists association. Images captured using slide film, for example, will vary even if the film is over- or underexposed by only one-third of an f-stop.

mdpgAperture-priority mode also allows some control over depth of field. With a 100-mm lens, for example, the depth of field is quite shallow. For capturing &mil, such as an occlusal view, the aperture may need to be stepped down (decreased) to increase the depth of field. Most auto-exposure systems allow you to …