Filter factor correction, Adjustment method 1 – Canon Model 7S User Manual
Page 76
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
Advertising
Filter Factor Correction
When
using
the
lilter,
exposure
must
be
adjusted
by adding the filter factor.
Adjustment Method 1
Changing the film spaed
Divide the film speed by the filter factor.
This
numerical
value
is
the
sensitivity
when
using
the filter. Accordingly, correct the film speed.
•
If
the
film
speed
is
ASA
100
and
the
filter
factor is 2, then it is 100 : 2 = 50. The film
speed must be adjusted to ASA 50.
Advertising