Update: Demb Flash Diffuser has been redesigned. To see the differences from the model described below please refer to our comparison review: Demb Flip-it! (Demb Flash Diffuser) - new design vs. old design.
The diffusing panel is attached with Velcro to the strap of the Flip-it! reflector and can be set at various angles to provide different levels of diffusion and coverage. Thus, with Demb Flash Diffuser you have more room for creativity than with the Demb Flip-it! reflector itself.
To deliver different diffusion effects, Demb Flash Diffuser can be attached to either a wide or narrow side of a flash head.
As with many other flash light modifiers, mounting on a narrow side of a flash head allows for an easy switching between the horizontal and vertical camera positions (practically eliminating the need for a flash bracket).
When attached to a narrow side, a better wrap-around effect can be achieved since more light goes to the sides. This, of course, works better indoors where there are many surfaces to bounce of.
Setting the diffuser forward can, for example, aid close-up shots.
Vertical position can be used for a large variety of situations, and using different angles of the reflecting card allows changing ratio between diffused light and the light bounced off of walls.
Hooding a flash head diffuses more light. This setting can be compared to using a translucent dome diffuser.
Any intermediate position between full forward and complete hooding is also possible. So, you can really fine tune your lighting.
The diffusing panel can be turned upside down and left attached to the flash when not in use. This frees you from the need of putting the panel in your pocket or bag, which makes it quickly accessible when you need it.
Even though Demb Flash Diffuser is designed to be used with flashguns, it also works great with on camera pop-up flashes (See our Demb Flash Diffuser pop-up flash test for more details). This can be a real save if you, for example, run out of batteries or something unexpected happens to your external flash. Diffuser has a reasonable level of light loss, and the results produced by a pop-up flash with Demb Flash Diffuser are much better then the ones taken with a pop-up flash only.
All-in-all, Demb Flash Diffuser is a very useful, well designed photography gadget. Here is what Joe Demb says about his creation, "Most diffusing devices are pretty much one-note solutions. It is my aim that the photographer will consider what he wants to achieve rather than what the modifier 'gives him or her'. It should be a controlled creative tool rather than a creative master." Well, we agree that "a controlled creative tool" is pretty much what the Demb Flash Diffuser happens to be. It deli use and plenty of options to control your light.
Here is a couple of sample shots taken with the Demb Flash Diffuser:
Also read: Frame coverage test
If you have any questions or comments, please post them below.