Please watch the KBX instruction video below.

 

 

 

 

 

Tips for setting camera and flashgun when using KBX Diffuser

Two things to remember –
The brightness of the background, and the brightness of the main character

 

 

 

First find your ideal brightness for the background
 

● Set camera in M mode, and do not trigger the flash gun
       (Using M mode can easily to adjust the brightness of the photo)
 


● Set the aperture
       (Try to use a larger aperture when you can, for a brighter photo)


●Set the shutter speed
       (Try to use a slower shutter speed to capture more light)


● Set the ISO rate
      (The higher the ISO the better ability to catch light)

       List below is the highest recommend ISO rate to use
       5D \1DS II  -  ISO 1600
       5DII \ 1D III \ 1DS III  -  ISO 1600 ~ 3200
       5DIII  - 5D IV -  ISO 1600 ~ 6400
       1DX \ 1DX II -  ISO 1600 ~ 8000
 


● Have a test shot without flash
      (Consider only background and environment light)

       If the background and environment light is too dark, increase the ISO rate
       If the background and environment light is too bright, decrease the ISO rate


● Repeat testing to find the best ISO rate
    When taking photos in a dark environment the key to a bright background is the ISO rate, not the strength of the flash.
     Remember to not make the shutter speed too fast. The slower the shutter speed the larger the opportunity your camera can catch light.
     If the shutter speed is too fast it will make the background dark even if the ISO rate is high.
 

 

 

Below is an example:
Remember to not turn on flash and have the camera in M mode, and don’t care about the brightness of the main character.
First set the aperture and shutter speed, then try different ISO rates to find the ideal background and environment light.


1DsII + 50mm f1.2 L
Camera in M mode
Aperture in f1.6
Shutter speed in 1/100
Do not use the flash. Care about the background and environment light only.
After trying many ISO rates, I find that ISO400 is what I want.
 



 

 


To match different color temperatures, use different KBX Color Filters and manually set the white balance of camera.

* Don't need color filters in a white tone indoor environment or outdoor in day time. Set the white balance in Auto mode

* For most yellow tone indoor environments use 204 Full CT Orange color filter (Must manually set the white balance in 2700~2800k)

* For most slightly yellow tone indoor environments use 206 Quarter CT Orange color filter (Must manually set the white balance in 3200~3800k)

* For most green tone environments use 246 Quarter Plus Green color filter and set the white balance by the environment


Caution:
If the incorrect color filter is used to match the environment, photos will have double color temperature.
For example, the background will have a yellow tone and the face of the character will be in blue tone.

 

 

 


Second find your ideal brightness for main character
 


●Trigger the flashgun and have a test shot –
  Set KBX Diffuser in Bump Flash mode or Direct Flash mode and flashgun in ETTL mode

Repeat testing to see whether the main character is too bright or too dark.
Strengthen the flash if it’s too dark, weaken the flash if it’s too bright.
The photo below use KBX diffuser and set in KBX Bump Flash mode

Flashgun in ETTL mode
Strengthen the flash with 2/3
Now the photo shows what I want
 

 

 

 

 

 

 

 

Various modes of KBX Diffuser

 

Bump Flash mode
 

 

 

In high celling or large indoor environment even outdoor KBX Diffuser can still

efficiently brighten the photo and solve the problems bellow

1. Photo isn't fully brightened while using Bump Flash mode (EX: Group photo, Activity record)

2. Photo wasn’t equally brightened or the flash came too stiff while using Built-in wide panel.

3. Character looking down or there are multiple characters in the photo that cause characters’ face to be not fully brightened while using Bump Flash mode

4. Character with a hat or holding an umbrella causing one's face to have shadows while using Bump Flash mode

5. In high celling, large indoor environment and outdoor where Bump Flash mode isn’t efficient
 


Note:
While using KBX Bump Flash mode, translucent cover is unnecessary

Try different angles and directions of the flashgun to make different effects

Flashgun slightly tilted forward will have a better brightening effect

 

 

 

 

1/2 Bump Flash mode

In 1/2 Bump Flash mode you will have a softer lighting effect than KBX Bump Flash mode
 



 

 

 

 

 

 

 

 Direct Flash mode

 

 

 

     

How to install KBX Translucent Cover click the video below

 

 

When Bump Flash mode isn't efficient, Direct Flash is another choice


Examples:
In a place with different and complex light sources

Having backlight problem outdoor

Using wireless mode to create background light
 

 

   Click here link below to have more sample

 

 

 

How to storage KBX Diffuser

Things to know about keeping KBX Diffuser

When not using KBX Diffuser for a long time, keep it like the clip and photo below.

 



 

 

 

Please watch the video below to know how to fold the diffuser

 


 

 

 

 

 

 


How to use KBX Color Filter

 

 

 


There are four different color filters come with the diffuser.

We use high-end material to produce KBX Color Filters so the colors are very accurate and do not have a large impact on the flash.

* Color filters are not needed in white tone indoor environments or outdoor in day time. Set the white balance in Auto mode

* 204 Full CT Orange – Most indoor environments with yellow tone – set the white balance between 2700~2800k

* 204 Quarter CT Orange – Most indoor environments with slightly yellow tone– Set the white balance between 3200~3500k

* 246 Quarter Plus Green – Most indoor environments with green tone – Set the white balance with the photo shot at the environment

* 202 Half CT Blue – Give the photo a blue tone


Caution: DO NOT clean the filter with alcohol or other volatile solvent.