How to use the Colored Flash Diffuser

[firstrazor]

I notice there are Yellow and Blue colored diffusers other than the common White one. What are the usage and how to use?

 

[J-Chan]

the idea is adjust the colour temperature of your flash either by warming it up (yellow-ish) or cooling it down (blue).. for example, if you're shooting in warm tungsten lighting, you would pop on the yellow-ish one and set the WB to tungsten, to get a better balance between the flash exposure and your ambient exposure..

 

[firstrazor]

Thanks!