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• In shooting fireworks, the recommended way to
record multiple bursts on the same frame is not by
using the multiple exposure button, but by mount-
ing the camera on a tripod, setting the shutter speed
dial at "B" and holding the shutter open with a cable
release. Set the aperture ring manually to the
appropriate f/stop, using the following table:
ASA 25 50 100 200 400
f/stop 5.6 8 11 16 22
• Interesting motion studies can be made by
mounting the camera on a tripod, using color film,
and making a triple exposure through a red, a green
and blue filter respectively. Select a scene having
both stationary and moving parts, such as a seascape
with rocks and surf, a crowded street with many
moving cars and people, or a tree whose leaves are
rustling in the breeze. Set the camera on a sturdy
tripod, focus and compose in the normal way.
Multiply the film's normal ASA by 3 and set this
higher rating on the camera's ASA ring. Put a red
filter (R1) over the lens and make the first exposure
in the AE mode of operation. Press the multiple
exposure button, and operate the winding lever.
Replace the red filter with a green filter (G1),
making certain not to move the camera at all. Make
the second exposure, and again operate the multiple
exposure button and winding lever. Replace the
green filter with a blue one (CCB12) and make the
third exposure. This sounds like an unduly complex
method of taking photographs, but the results are
well worth the extra effort. The stationary objects in
the scene remain motionless and are rendered in
their natural colors, whereas the moving objects
become a "rainbow" of separate red, green and blue
images. In the above method you might have to
experiment with manual exposures through the three
filters to get perfectly exposed slides. Use the filter
factor for each filter in your exposure calculations.
Consult your local camera dealer for additional
advice.
Notice:
If exact registration is required, multiple exposures
should not be made on the first few frames of a roll.
Film characteristics can cause slight mis-registration
(about 0.05mm).
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