Sto-Fen OM600 Omni-Bounce Diffuser

In terms of effectiveness for its simplicity and convenience, this item is unbeaten. It will greatly improve your flash photos without having to carry complex and bulky gadgets.

The Omni-bounce on my SB600 works like a champ for outdoor portraiture. I got it to reduce the hotspots when using direct flash, and it does exactly that. It also provides more even lighting for fill-flash...which I use a lot.
It creates nice catch lights in the eyes and fills in the shadowy areas nicely. It takes next to no room in my gadget bag and weighs nothing. It also doesn't look silly like some diffusers do.
Shooting indoors, it still leaves some specularity which I personally find unpleasant, but since I got it for outdoor fill-flash use, I have no second thoughts about buying it.

Excellent product. Works perfectly. I highly recommend it to anyone needing a softer light from their flasher. Very speedy delivery too. Very pleased with transaction.

This item performs GREAT with the Nikon SD-600 Speedlight Flash, It is a must have for the flash as it produces much better effect when used with the flash rahter than NOT using it. I highly recommend it

I purchased this flash diffuser for a job that I needed. Unfortunately I kept having to remove it during the job. The camera kept adjusting the exposure value for the flash, and was changing the levels. What I was shooting didn't allow me time to manually adjust the flash every shot. I have however used the flash indoors for portraits, and the diffuser was very nice, and did the job well. I would recommend the diffuser for portraits or shoots when you have time to adjust the flash manually. Works best when the flash is dead on, didn't notice much of a difference with the flash in bounce position however.