The Elinchrom External Diffuser 135 cm is a stackable lighting accessory for the Rotalux Octabox that enhances light control in professional photography setups. It is externally attached with double Velcro fasteners to ensure secure mounting and provides an additional diffusion layer that softens the light, reduces harsh shadows, and creates balanced, natural lighting, making it ideal for portrait and product photography. This diffuser limits light scattering for a more focused alignment, improving detail capture in various shooting situations. It is designed for demanding studio use and features a stackable design for convenient storage and transport. Compatible with the 135 cm Rotalux Octabox, it supports reliable performance in studio lighting control and emphasizes quality and practical benefits.