Photographing x-rays

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NIKON 995
Photographing Radiographs
Set up a view box in a room without windows, where all the lights can be turned
off.
Of course NO Flash is used for this type of photography
Make a series of Masks for each type of x-ray, so the whole view box is covered
exposing only the area of the radiograph.
A reusable plastic slide holder is ideal for a periapical radiograph- covering the
rest of the view box with black paper.
Put your camera on a tripod; the exposures can be long. You will capture a
sharper image if the camera is properly set up on a tripod or copy stand.
Set up for Nikon Coolpix camera:
Manual
Menu- Saturation Control-B&W
Mode- rotate dial to P
Exposure will be slow, requiring tripod
Panorex : Zoom to
W____I____T without Macro setting
Periapicals: Zoom to
W____I____T with Macro setting
Photographing White Plaster Casts
Drape black velvet (or matte paper) on a background and over the edge of the
counter and keep it at eye level. No folds in the background should be showing.
Place plaster cast on the background.
Use two gooseneck lamps, positioned to illuminate the cast properly and avoid
unwanted shadows.
Camera Set Up:
Set Camera to A (Aperture Priority)
Menu – white balance – set according to your light source (incandescent)
Set f-stop to the highest value ie. f 10.1 –11 ( depending which digital camera
you use). This will allow for the most Depth of Field and the cast will be in focus
from the anteriors to the posteriors.
The shutter speed will set itself, depending on the light output it can be a slow
exposure. Do not hand hold any exposure longer than 1/60sec
Focal Length for Nikon set Zoom to
your Intra-Oral Photographs
(do not use Digital Zoom)
W_______I T
Always use a tripod for maximum sharpness.
Macro setting Same as
Photographing copy from books
Copy work should be done in a room without too much light. Overhead lights
should be turned off to avoid reflections. Flat copy cannot be photographed using
a flash. The direct burst of light will reflect on the image.
Ideal Set Up – Copy stand which is a flat board with a column on which the
camera is mounted and moved up and down to adjust the size of the image.
A light source is placed on each side of the copy work at a 45o angle.
This can be either two inexpensive clip-on, incandescent lights, attached on the
back of two chairs, or two gooseneck lamps, twisted to 45 o.
The fast and compromised way- only to be used in an emergency
( on the way to the lecture )
Use window light, always choosing either a cloudy day or a North window –
never direct sun. Direct sun will wash out your image.
Always use a tripod for maximum sharpness.
Set up your Nikon Coolpix
Set Camera to M exposure
Mode – hold down mode button and rotate dial to P for program- this will set
the exposure automatically but allows you to set the colour correction for the
yellow of the incandescent lighting
Mode
White Balance- incandescent
Focal Length between W____I____T without Macro setting for large images
W____I____T with Macro setting
( push the flower symbol) for very small illustrations
Photographing Slides
Set up a view box in a room without windows, where all the lights can be turned
off.
Of course NO Flash is used for this type of photography
Make a Mask for your slides, so the whole view box is covered exposing only the
area of the slide. Glue three pieces of thick cardboard around the opening. This
will stop the slide from moving around and all pictures will be taken in the same
position.
Put your camera on a tripod; the exposures can be long. Some images can be
hand held, but you will capture a sharper image if the camera is properly set up
on a tripod or copy stand.
Set up for Nikon Coolpix camera:
AUTO
Exposure will be slow, requiring tripod
Periapicals: Zoom to
W____I____T
with Macro setting
Fill the frame with the image, focus ( hold the shutter down halfway) until the
green autofocus light stops blinking or the focus sound goes off. Squeeze the
shutter all the way down, without releasing the pressure from the shutter and
expose.
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