FujiFilm AF3-177E Daylight, Electronic Flash, Flash Bulbs, Fluorescent Lamps, Tungsten Lamps

FUJIFILM PRODUCT INFORMATION BULLETIN • FUJICOLOR PRO 800Z PROFESSIONAL

5.EXPOSURE FOR VARIOUS LIGHT CONDITIONS

Daylight

Under usual daylight conditions, color balancing filters are not necessary, but the following exposure conditions may require the indicated filters.

Subject Conditions	Filter
Fair weather/open shade and shaded	Wratten filter
landscapes	No. 2C (SC-39*)
Bright distant scenes, snow landscapes,	Wratten filter
seaside scenes, aerial scenes and open
	No. 1A (SC-40M*)
landscapes
* Fuji Sharp-cut Filter (Ultraviolet)

For excessively high or low color temperatures, use of the color balancing filters is recommended.

NOTE :When artificial illumination is being used as the main or auxiliary light source either indoors or outdoors under conditions in which sunlight is present, the use of either an electronic flash or blue flash bulbs is recommended.

Electronic Flash

•Electronic flash produces light similar to daylight, so filters are not needed. However, the possibility of undesirable effects on color balance, due to various factors (the type of flash used and amount of time used, etc.) should be taken into consideration. Test exposures are recommended.

•If shutter speeds slower than 1/60 second are used, light from non-flash sources, such as room lighting, may cause color imbalances. Make test exposures.

•The use of a flash meter is advisable, but the following formula can also be used to obtain satisfactory lens opening.

Lens Electronic Flash Guide Number (at ISO 800) Aperture = ————————————————————————

(f-number)Electronic Flash-to-Subject Distance (meters or feet)

When using an auto flash unit, the ISO film speed set- ting should be set to 800. Since the amount of light on the subject may vary according to amount of light reflected from surrounding surfaces and other factors, follow the instructions provided with the flash unit.

Flash Bulbs

With blue flash bulb exposures, compensating filters are unnecessary. With clear flash bulbs, however, use a Wratten filter No. 80C (Fuji LBB-8* filter) and increase the lens opening by +1 stop. However, since the light quality may vary with the bulb type and the manufac- turer and the amount of light may vary with the lighting equipment and diffusion technique, test exposures should be made with the equipment being used.

* Fuji Light Balancing Filter

Daylight Photoflood/Photo-Reflector Lamps

•Daylight-type photoflood or photo-reflector lamp output may be lower than that indicated by the exposure meter. It is recommended to compensate for the difference by increasing the exposure time (by lowering the shutter speed) or by increasing the lens opening. Whenever possible, test exposures are recommended.

•Other factors that should be considered when deter- mining the exposure settings are lamp configuration, length of time used and line voltage, as they may affect lamp output and color balance.

Fluorescent Lamps

When photographing under fluorescent lamps, it is recommended that a shutter speed range of 1/30 to 1 second be used to prevent influence from lamp flicker.

Tungsten Lamps

When using 3200K tungsten lighting, use a Wratten filter No. 80A (Fuji LBB-12* filter) and increase the lens opening by + 2 stops. In the case of cameras with TTL metering, there is no need for additional exposure compensation.

* Fuji Light Balancing Filter

6.LONG EXPOSURE COMPENSATION

For exposures of 4 seconds or more, the exposure compensations indicated in the table below is required. No exposure color balance compensation is required for exposures within a shutter speed range of 1/4000 to 1 second.

Exposure Compensation Table

Exposure Time	1/4000 to 1	4	16
(sec)
Exposure Correction	None	+2/3 stop	+1 1/2 stop
(Lens Opening)

(Exposure time longer than 16 seconds is not recommended.) The + sign indicates an increase in the lens opening.

7.EXPOSURE PRECAUTIONS

When using an accessory such as a reflector umbrella, reflector or diffuser to control light intensity or diffuse the light, make sure that no change has occurred in the color or composition of the accessory’s materials or reflective surface, and that the color of the light has not been altered by the material.

– 2 –