American Cinematographer - November 1987 - 121

mmiPi urnssm

this

test because the open shutter time
allowed the car to pass through the
entire frame. However, there was still a

certain amount

which

was not

of jumping of the subject
the effect the production

□

VIDEO

35mm

a

company was striving for.
It was finally decided

□

SOUND

□

that the
would stay but the

20 second exposure
closed-shutter time had to be less than
1 second to rid the shot of any obvious

jumping. In it's normal configuration,
the Norris unit gives a minimum closedshutter time of 1 second (when a full
number is dialed on the shutter speed,
i.e. 20 secs.) So what to do?
"We put the system out of
it's normal configuration," explains
Rodenbush. Our advisors

at

a

16mm

UGHT

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SALES AND RENTAL

(612) 646-1780
856

Raymond Avenue, St. Paul, Minnesota 55114

\

Clairmont

suggested that we throw the intervalometer 180 degrees out of phase. In
other words,

we

took the controller's

capability of holding the shutter opening
as well as closed time, and flipped them
This enabled us to use the
fractions of a second, in this case 14 of
around.
a

36 Bush Avenue, Port Chester, NY 10573
1135 North Highland Avenue, Hollywood, CA 90038

second, for closed shutter time.
"To make such

change,"

a

added Rodenbush, required absolutely
no modification of the camera drive sys¬

the intervalometer system. The
point where the Norris motor connects

tem or

with the

camera

drive is

a

female

to

©edit

male gear
turned 180

fitting which we simply
degrees. The unit would still
cycle properly, but instead of the cam¬
era shutter going 'open-close,
openclose,' it went 'close-open, closeopen.'"
This example is one of sev¬
eral options being discovered by produc¬
tion personnel out in the field. Even Dan

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Norris, the unit's inventor, admits the
system has untapped possiblities. "The
unit is open to the imagination of it's

the NTSC TV standard.
Surface mirror and a
For

users," said Norris.
ris system keeps growing.
movies featuring the matte

more

information, write to:

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The list of credits for the Nor¬

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or

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Recent
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(New World Pictures) as well as Beetle
Juice, another Ted Rae/Little Buddy
Productions project due to be released
by Warner Bros.
A
David To/sky is an assistant camera¬
man and freelance writer.

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Foreward Reverse

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r119
American Cinematographer - November 1987

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