SMALLRIG RA-D55 55cm Parabolic Softbox

This parabolic softbox from SMALLRIG is a 55cm deep modifier designed to tame and widen the beam of Bowens mount COB and LED lights while remaining portable and quick to set up. It blends a reflective two-layer fabric with a deep parabolic shape to soften highlights and preserve colour rendition, making it useful on location or in compact studios.

Key features

The RA-D55 uses an original quick release mechanism that snaps the softbox on or off in about 15 seconds, which helps when you need to move fast between setups. It folds down for storage and weighs roughly 1kg, and the pack includes a carry bag for easier transport. According to the manufacturer, the two-layer Oxford cloth and high-reflectivity inner coating spread light evenly and keep the original colour temperature and CRI intact. The parabolic form and the 16 military-grade ribs create a smooth, rounded surface that resists deformation even after extensive use. The kit arrives with two diffusers and a honeycomb grid so you can shape the beam from broad and soft to more focused, which is handy for portrait work, product shots and video.

Specifications

• Name: RA-D55
• Size: 55cm
• Material: Oxford cloth with reflective coating
• Weight: 1kg
• Format: Parabolic softbox
• Compatibility: Bowens mount lights
• Contents: Softbox, honeycomb, internal diffusion, external diffusion, carry bag, user manual

Usage tips

The quick release mechanism speeds up changes when swapping lights or modifiers, and the lightweight frame makes it simpler to carry between locations. It’s a good idea to test diffuser combinations in advance to match the softness and spread you need, and to fit the honeycomb when you want more directional control. Note that the deeper parabolic profile gives a slightly more focused falloff than shallow softboxes, which can help shape facial features without harsh shadows.

Care & maintenance

Wipe the reflective interior with a soft cloth if dust appears and fold the ribs gently when packing to avoid stress at the joints. Keep the diffuser panels clean and store the set in the supplied bag to prolong the coating life and maintain consistent light quality.