Vello Flash Multiplier-Diffuser Attachment with Nikon SB-900 Series Adapter Kit

Put together by B&H the Vello Flash Multiplier-Diffuser Attachment with Nikon SB-900 Series Adapter Kit from Vello is a cleverly-designed modifier that's both a Fresnel and a diffuser. The Fresnel lens actually pumps out approximately three additional stops of light for activities such as wildlife photography or other long throw work like sporting events. Alternatively, the attachment comes with a diffuser that replaces the Fresnel to allow you to use it as a 5.5 x 7.8 x 6.65" softbox.