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Nikon Coolpix 990 Help

The camera settings shown below offer a starting point for taking pictures with the Nikon Coolpix 990 digital camera.

We encourage you to familiarize yourself with the settings and usage of this camera.

Recommended Settings for Extraoral Photographs

Turn the camera on by set-

ting it to the

setting

located on top of the camera,

as shown to the right.

We suggest using either a wall mounted lightbox with a built-in slave flash or a bare slave flash

to eliminate shadow on the profile images. If you are using a bare slave flash, we have found that

it works best when placed precisely behind the patient's head, facing toward a white background.

You may need to adjust the brightness on the background lighting that you use in order to generate

accurate soft tissue hues. Overhead fluorescent lighting may also affect the color of the images.

You can replace the fluorescent bulbs with Vita-Lite, or other natural lighting bulbs to produce

better color images.

right picture. We also have to invest time in setting up our offices for the right lighting for digital

images.

Tips for Taking Extraoral Images

When you are taking the lateral head image, make sure the patient's head is level, with no tilting or

canting. We suggest that you place a mirror in front of the patient with a vertical line and have them

align themselves to it. This will reduce the amount of head tilting, making it easier to align the pho-

tos to the x-ray tracings. You should take the photo with the lens roughly along the patient's

Frankfurt Horizontal plane to ensure the most accuracy.

Recommended Settings for Intraoral Photographs

For intraoral photographs, we recommend switching to the Manual mode on the camera. This allows you to take higher

quality pictures than in the auto mode, and allows for greater control over the exposure and depth of field of the images. The

manual settings only need to be set once, as the camera "memorizes" these settings.

To access the manual set-

tings, turn the camera on by

setting it to the

setting

located on top of the camera.

Adjusting ISO film speed:

The ISO settings define how quickly the camera

takes the picture. A higher ISO number means the

camera will take the picture quickly, so there's less

chance of blurry pictures. This is especially useful

for intraoral pictures.

To set the ISO settings, hold down the flash button

on the back of the camera and rotate the "Command

Dial" located at the top of the camera as shown:

The letters ISO should appear in the Control Panel.

You should stop rotating the dial when ISO 400

appears.

http://www.quickceph.com/docs/1028Nikon_990_help.pdf

Nikon has included a help manual on the "Reference Manuals CD-ROM".

Adjust image quality:

Click on the

the back of the camera until

the FINE option is displayed.

Professional photographers spend time setting up their studios for just the

General settings:

To take intraoral images, the camera must be switched to the Macro Close-up

mode. To activate this mode, press the

the Control Panel and the LCD monitor. The Anytime Flash mode should be

turned on as well.

Adjusting Aperture Priority:

For a better depth of field, you should adjust the Aperture settings. Setting the

camera on "Aperture Priority" allows you to adjust the camera so you can take

pictures where the foreground and the background are both sharp. This is crucial

for intraoral photographs.

To enable "Aperture Priority", hold down the "Mode" button and rotate the

"Command Dial" located on the top of the camera until the

Next, rotate the "Command Dial" all the way to the right until the you reach an F-

Stop of about 9.0, which appears in the control panel screen at the top of the cam-

era. You will need to use the Zoom buttons to fine tune the value.

The macro icon

Quick Ceph

Adjust flash settings:

button on

Click on the flash button

the camera until the flash displays only the

symbol. This enables the Anytime Flash mode.

will then appear yellow on the LCD monitor.

Page 1

Systems

on the back of

Your Control Panel

should look like this.

FINE mode with Anytime

Flash enabled.

We recommend

using rechargeable

Nickel Metal Hydride

(NiMH) batteries with

this camera, as they

hold their charge

longer than regular

AA batteries.

button until the

icon appears in

icon appears:

Doc ID# 1028Nikon_990_help - Revision 12-13-00

FINE

TIP