One of the accessories that I still pack in my lighting kits today is the D-Fuse Pop Up Softbox. It's a quick and simple way to add diffusion to just about any LED light panel. And recently they've released a new version called the Trapezoid that offers some nice upgraded features.
One obvious feature with the new D-Fuse is that the softbox is now designed as a round circle, which is important to some that want a round specular reflection when shooting products, or when used as a catch light in a subject's eyes.
The next important upgrade is a locking sleeve that slides over the quick connect magnets. This prevents the rods (frame of the D-Fuse) to accidentally separate.
Another small design difference is how the D-Fuse Trapezoid tapers outward essentially increasing the overall size of your light source with further helps to diffuse and soften your light.
The D-Fuse Pop Up Softboxes have been around for some time, and I still see it in use with many small production teams. There are no loose parts, very little assembly, incredibly lightweight, and tiny to pack up. If you're working with LED light panels, it's certainly something I recommend adding to your kit.
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