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FUJIFILM PRODUCT INFORMATION BULLETIN • FUJICHROME ASTIA 100F Professional
[
RAP100F
]
Subject Conditions
High Color Temperature:
Cloudy weather landscapes or
portraits in open shade in clear
weather.
Low Color Temperature:
Morning and evening twilight
scenes and portraits.
Filter
No.81A*
(LBA-2)***
No.82A* or
No.82C* (LBB-2
or LBB-4)***
Exposure
Correction
+1/3
stop****
+1/3 to
+2/3
stop****
* Wratten Filter
** Fuji Sharp-cut Filter
*** Fuji Light Balancing Filter (not available in certain markets.)
**** A “+” followed by a number indicates the required increase in
lens opening.
Electronic Flash
• Electronic flash produces light similar to daylight, so
filters are not needed. However, the possibility of un-
desirable effects on color balance, due to various
factors (differences in equipment, use duration, etc.)
should be taken into consideration. Test exposures
are recommended.
• The use of a flash meter is advisable, but the follow-
ing formula can also be used to obtain a satisfactory
lens opening.
• Set the film speed at ISO 100. Since the amount of
light reflected onto the subject from surrounding sur-
faces will differ with the conditions, refer to the flash
unit instructions.
Daylight Photoflood / Photo-Reflector Lamps
• Daylight-type photoflood or photo-reflector lamp out-
put may be lower than that indicated by an exposure
meter, so it is advisable to compensate for this by in-
creasing exposure time or lens opening. Whenever
possible, test exposures are recommended.
• Other factors requiring consideration when determin-
ing the exposure time are lamp configuration, use
duration and line voltage, as they may affect lamp
output and color balance
Fluorescent Lamps
• The use of the following combinations of color com-
pensating filters is advisable when photographing
under fluorescent lighting.
• For exacting work, however, test exposures are rec-
ommended because lamp brand and age may affect
light output and color balance.
=
Electronic Flash Guide Number (at ISO 100)
Electronic Flash-to-Subject Distance (meters or feet)
Lens
Aperture
(F-number)
Fluorescent
Lamp Type
Color
Compensat-
ing Filters*
Exposure
Corrections**
White
(W)
10B+5M
+1/2 stop
Daylight
(D)
25R
+1 stop
Cool White
(CW)
15M+5B
+2/3 stop
Warm White
(WW)
No. 80C+10M
+1 stop
* Wratten Color Compensating Filters or Fuji Color Compensating
Filters are recommended.
NOTE: No. 80C is a Wratten Color Conversion Filter.
** Exposure correction values when using a filter relative to unfil-
tered exposure results. A “+” followed by a number indicates the
required increase in lens opening.
NOTES
• Use a shutter speed slower than 1/30 second.
• For shutter speeds of 2 minutes or more, exposure adjustments
will be necessary to compensate for reciprocity law failure.
Tungsten Lamps
• A Wratten Filter No.80A (or Fuji Light Balancing Filter
LBB-12) is required when using 3200K tungsten light-
ing. A 1
2
/
3
-stop larger lens opening is also required.
• If household tungsten lighting (room lamps, etc.)
constitutes the main source of illumination, in addi-
tion to the above filter a Wratten Filter No.82A (or Fuji
Light Balancing Filter LBB-2) is required, plus an ap-
erture increase of 1/3 stop (total 2 stops).
Mixed Light Sources
Under mixed light conditions, the basic filter configura-
tion should suit the main light source. In the case of
cameras with TTL metering, there is no need for addi-
tional exposure compensation for any CC filter(s) used.
5. LONG AND MULTIPLE EXPOSURE
COMPENSATION
No exposure correction or color balance compensation
is required for exposures within a shutter speed range of
1/4000 second to 1 minute. However, for exposures of 2
minutes or longer, ‘reciprocity law failure’-related color
balance and exposure compensations are required.
(Exposure time: 1/2 sec.)
• A UV filter No. 2C* (SC-39 or SC-40)** or other ap-
propriate ultraviolet absorbing filter is recom-
mended for scenes that are shone upon by strong
ultraviolet light, such as seaside locations, snow
scenes, and bright distant views.
• Excessively high or low color temperatures may re-
quire the following filters and exposure corrections.
Exposure Time
Color Compen-
sating Filter
Exposure
Corrections*
1/4000 sec. – 1 min.
None
2 min.
5B
+ 1/3
stop
4 min.
5B
+ 1/2
stop
8 min.
5B
+ 2/3
stop
* Exposure correction values when using a filter relative to unfiltered
exposure results. A “+” followed by a number indicates the re-
quired increase in the lens opening.
Multiple Exposures
No exposure correction or color balance compensation
is required for up to eight consecutive multiple expo-
sures using an electronic flash.
NOTE Exposure correction values given above for long and
multiple exposures are for a reversal film with an aver-
age emulsion when processed under standard pro-
cessing conditions. Therefore, use the data only as a
guide. For exacting work, test exposures are recom-
mended under actual shooting conditions.
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