This is the smallest Rotalux Octa. Very popular among beauty and fashion photographers, as they prefer the round catch light given by this soft box. It's a great folding beauty dish when removing the front and inner diffusers and adding one of the optional deflectors. The Elinchrom Rotalux 39" Mini Octa Soft box when used with the various Elinchrom speed ring mounts, has a rotating ring that assists to provide exact angle positioning. This box, is easy to setup, uses durable snap fasteners to quickly attach the inner diffuser and provides a very beautiful soft light when used with the outer diffusion. The 39" (100 cm) Octa shape features a large surface area which renders a "wrap-around" light quality especially when used at close range. It is ideal portraiture. Shape The 39" (100 cm) Octa shape is ideal for head-and-shoulders portraiture, as a hair light for groups or for reflective products and glassware. Quick Setup, Breakdown Lightweight, dedicated speed rings utilize knurled, spring-action sockets to connect the 8 stainless rods which form the frame of the box. Storage Fits assembled but de-tensioned in the included case, ready to set up again in seconds.