589209

Olympus FC-1 Macro Flash System Manual

41
Zoom out
Zoom in
Previous page
1/53
Next page
40 41
Twin Flash light ratio setting
When using both flashes ( A and B ), you can adjust the ratio between their light intensities as required.
This makes it possible to create a three-dimensional effect by applying various degrees of shading to the
subject as shown below.
Light ratio 8 : 1 1 : 1 1 : 8
When dial A is turned, the Twin Flash A / B light ratio is displayed on the control panel. The Twin
Flash light ratio is ready for adjustment.
• The control panel display shows both the light intensity ratio and bar graph simultaneously.
• The setting can be varied in steps of 1/3.
<Using the diffuser FDT-1>
The diffuser enables shooting under soft lighting by attenuating the shades on the subject.
Another way that shooting options are increased is the ability to use the wide-open iris (F).
1. Insert the diffuser into the diffuser mounting grooves of
the Twin Flash.
• Since the use of the diffuser reduces light intensity by about
2 steps, the guide numbers (GN) change as shown in the
following tables.
TTL AUTO
• Flash at optimum exposure is possible, but the light con-
trol range is reduced due to decrease in the guide num-
ber (GN).
MANUAL
•Refer to the following tables when setting the lens iris (F).
When using two flashes (Combined guide number)
Light intensity ratio 1/1 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256 1/512
GNm Without diffuser 22 16 11 8.0 5.6 4.0 2.8 2.0 1.4 1.0
With diffuser 11 8.0 5.6 4.0 2.8 2.0 1.4 1.0 0.7 0.5
GNft Without diffuser 72 52 36 26 18 13 9.2 6.6 4.6 3.3
With diffuser 36 26 18 13 9.2 6.6 4.6 3.3 2.3 1.7
When using only one flash
MACRO FLASH CONTROLLER
FC-1
MODE
LAMP
AUTO
CHECK
TEST/
CHARGE
POWER
LIGHT
RATIO GN/
<Other operations>
■The tripod screw of the Twin Flash can be used as follows.
• TTL AUTO
Flash at optimum exposure is available but the light con-
trol range varies depending on the shooting conditions.
• MANUAL
Set the lens iris (F) by performing test flash activation.
Light intensity ratio 1/1 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256 1/512
GNm Without diffuser 16 11 8.0 5.6 4.0 2.8 2.0 1.4 1.0 0.7
With diffuser 8.0 5.6 4.0 2.8 2.0 1.4 1.0 0.7 0.5 0.4
GNft Without diffuser 52 36 26 18 13 9.2 6.6 4.6 3.3 2.3
With diffuser 26 18 13 9.2 6.6 4.6 3.3 2.3 1.7 1.2
Light ratio
Control panel display
A
8 : 1
4 : 1
2 : 1
1 : 1
1 : 2
1 : 4
1 : 8
B
Only flash A fires.
Flash B does not fire.
Light ratio 8:1
(Equivalent to +3 steps when converted to
exposure value)
Light ratio 4:1
(Equivalent to +2 steps when converted to
exposure value)
Light ratio 2:1
(Equivalent to +1 steps when converted to
exposure value)
Both flash A and flash B emit light at the same
intensity.
Light ratio 1:2
(Equivalent to –1 steps when converted to
exposure value)
Light ratio 1:4
(Equivalent to –2 steps when converted to
exposure value)
Light ratio 1:8
(Equivalent to –3 steps when converted to
exposure value)
Only flash B fires.
Flash A does not fire.
Note
If the selected Twin Flash light
ratio is too low for the selected
light intensity ratio (guide
number), the Twin Flash light
ratio display blinks. If this hap-
pens, change the Twin Flash
ratio or light intensity ratio
(guide number) (page 46).
Twin Flash light ratio
… 41 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Olympus FC-1 Macro Flash System at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Olympus FC-1 Macro Flash System in the language / languages: English as an attachment in your email.

The manual is 4,51 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info