SmallRig RA-D55 Parabolic Softbox

SmallRig RA-D55 is a compact 55 cm parabolic softbox designed for portrait, interview, product and film lighting setups that need soft, controlled light without the size of a large studio modifier. Its 16-sided shape creates a rounded front surface and a relatively deep profile, helping produce a more directional character than a shallow softbox while still smoothing harsh shadows. The standard Bowens S Mount makes it compatible with a broad range of COB and point-source fixtures that use the same accessory mount.

55 cm parabolic design for compact lighting setups

The RA-D55 measures approximately 55 cm in diameter and 37 cm in depth when opened. This size makes it useful in smaller studios, apartments and location interiors where a larger modifier would be difficult to position. It is particularly practical as a key or beauty light for headshots and interviews, as a controlled source for product photography, or as an overhead modifier when rigging space and weight need to remain limited.

Internal and external diffusion for adjustable softness

The modifier includes both an internal diffusion baffle and an external front diffuser. The two layers can be used together for a smoother and more even result or adjusted depending on the balance you want between softness and light output. The silver reflective interior helps direct more of the fixture’s output toward the front of the softbox, improving efficiency while the diffusion layers soften the final source.

45° honeycomb grid for precise spill control

The included fabric honeycomb grid narrows the beam angle to approximately 45°, helping keep the diffused light focused on the subject instead of spilling across backgrounds, walls or nearby parts of the set. This is especially useful for interviews, portraits and product shots where the source needs to remain soft but the surrounding scene should stay more controlled.

Quick-release Bowens construction for faster setup

SmallRig uses a click-and-lock quick-release structure that allows the softbox to be opened and collapsed without inserting individual rods into the speed ring each time. The 16 support ribs are mounted externally, leaving the reflective interior clear and helping the modifier maintain its rounded shape. The outer shell uses durable Oxford-style fabric, while the complete softbox weighs approximately 1.12 kg, making it convenient for location work and lightweight lighting kits.

Rent SmallRig RA-D55 at CamCam Rental

At CamCam Rental the RA-D55 is a practical choice when you need a compact Bowens-mount softbox for portraits, interviews, product photography or controlled key lighting. We can help you pair it with a suitable fixture, stand and grip accessories depending on the planned setup and working height. Availability can be checked online and the rental can be ordered directly through the website. If you are comparing fixtures for use with softboxes, see our guide: