EXPOSURE
COMPENSATION
Fixed Proper Exposure
Proper exposure refers to the balance of light and
dark in a photo. When shooting a black and white
wall, the exposure will be based on the average
ratio of black and white — thus the overall
exposure is set for gray. This is technically called
"fixed proper exposure." A good example of this is a
subject with a strongly lit background. The reason
the subject turns out dark is because there is more
brightness than darkness in the frame. Therefore,
the fixed proper exposure is based on the total level
of light in the photo, which is significantly brighter
than the subject. In the case of strong backlighting,
the exposure needs to be adjusted to compensate
for the excessive brightness.
Adjusting the exposure to accommodate lighting
conditions is called exposure compensation. When
ESP light metering is used, the camera
automatically evaluates the lighting situation and
compensates for the proper exposure, so manual
exposure compensation is not needed.
Exposure Compensation
With the IS-3DLX, ±4EV exposure compensation in
1/3 EV steps is possible. + Compensation will make
a subject appear brighter, while - compensation will
make a subject appear darker. Under backlit
conditions you'll want to make your subject appear
brighter (+1 to +2EV). For shooting winter snow
scenes, you may want adjust the exposure for
additional definition (+2EV). Or, suppose your picture
is composed of a black wall, (-2EV) compensation
would most likely be appropriate.
Film Speed
Film speed is indicated on the back of film
packages. ISO 100, ISO 200, and ISO 400 are the
most common. High-speed film (ISO 400), as
implied by its name, is for taking photos of fast-
moving subjects in action shots, for example.
However, there are also other advantages. With
high-speed film, such as ISO 400, it is possible to
take pictures in lower light. And the distance
covered by the flash will be greater.
With this camera, we recommend the use of "DX"
film cartridges: ISO 25 ~ 5000. In the case of non-
DX-coded film, the camera will automatically be set
to film speed ISO 32.
FILM SPEED
75
