PHOTOGRAPHY OF OPAQUE AND TRANSPARENT OBJECTS

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PHOTOGRAPHY OF OPAQUE AND TRANSPARENT OBJECTS

Transparent and radiographic images

camera

placed directly on

the radiographs

a copy stand or tripod.

The radiographs

black tape

on cardboard paper

to mask the radiographs

must be placed

on the X-ray viewer,

Material

fl-d glass filter

a 55-70 mm macro lens

should be used

A magenta-colored gelatin filter

avoid a greenish-blue color in the photograph.

An ordinary negatoscope

with

2 or 3 fluorescent lamps

Study models

NON articulated models:

at the level of

the union of the 2 models

sup and inf occlusal faces

should be shown.

Articulated models:

The approach

should be at

the canine level

left view

right view

front view

GENERAL

Illumination

at 4 angles at 45°

Camera.

Lens

Use 50-100mm lens

Use 35mm reflex camera

Solid background

blue

white

black

Trimmed and clean.

Instruments

Light

should be directed

extremities of the instrument

this will produce textures

without shadows

along

the sides of the instrument.

on the working surface

To capture

porosity texture uniform sheen

should be used.

a direct flash at a 45° angle

to

instrument

the object

How to place the instument:

At the center

perpendicular to the camera

COPYING BASE OR TABLE

HORIZONTAL TABLE

Recommended when

photographing large elements

he distance to the subject

VERTICAL TABLE

require little space

the material is placed

under the camera.