Compare Flash Diffusers

If you have read our page on “What makes our Flash Diffuser Different?” then you know that the effectiveness of a flash diffuser is tied to the size of the light source. The bigger the source, the softer the shadow. By not relying on diffusing material alone, but a system of internal reflective surfaces, we have created a diffuser with the largest effective light source compared to all of the top-selling flash diffusers available. Below we compare un-retouched pictures taken with the same camera and flash from the same distance. As with any diffuser, appropriate exposure compensation was made with each diffuser.¬† We think the difference is pretty remarkable.

Flash Only

Graslon Prodigy Flat

Graslon Prodigy Dome



There are many ways to compare flash diffusers. The tests displayed here are intended to show differences in situations where there is little or no bounced light available to the subject. The following paragraph outlines the test procedure in sufficient detail so you can easily duplicate the same tests yourself. No secrets. No surprises. Just great results!

The following tests were performed in a using a Canon 580EX flash in manual mode, with the flash mounted 8 inches left and 9 inches above the 100mm lens. The grid is one inch squares cut from red felt, and is 8 inches from the wall. The grid is 64 inches from the focal plane (image sensor). Bounce was eliminated by constructing a 24″ x 24″ tunnel from black foamboard.

We start with the flash only. Shadows are somewhat harsh.

Next: The Graslon Prodigy Flat diffuser was designed primarily for use in situations where there is no surrounding objects from which to bounce light. Notice the soft, broken up shadows. Even the center  portion of the shadow has some illumination due to the pass-through slits in the primary mirror. Great for venues with high ceilings or large open spaces, such as large banquet halls and red carpet affairs.

The Graslon Prodigy Dome diffuser