Canon SCOOPIC 16M Instructions Manual page 36

34
Adjustment 1
Changing ASA Inde x
Divide the ASA index of the film by the exposur,e
factor of the filter . Set the film speed dial to this
figure .
For example, a Y3 (exposure factor 3) filter is used
for an ASA
100
film, the compensated ASA index is
100
7
2
=
50. Reset the film speed dial to ASA 50 ,
Adjustment
2
Adjusting T !stop
Adjust the T !stop by turning the aperture control
ring accoring to the exposure factor of the filter . The
T / stops are graduated in a multiple p roportio n.
I ncrease the T /stop by 1 graduation when using a
filter with an exposure factor of
2
and by
2
graduations when using a filter of an exposure factor
of 4.
Adjustment 3
Adjusting by Using NO Filter
Use an N D 4 or NO 8 fi Iter when the subject is too
bright . With the ND 4 filter, attach an EE compen-
sating NO 4 filter onto the CdS window. In this case,
t he film speed dial setting need not ,be corrected .
When the NO
8
filter is used, di v ide the ASA inde x
of the film by a filter exposure factor of
8
and reset
the film speed . Or attach an EE compensating NO 4
filter onto the CdS window and reset the film speed
dial to the ASA inde x divided by
2 .