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White fabric diffuser panel with silver interior for 180cm reflector

Profoto

Profoto 1/3 f-stop Diffuser for Giant Reflector 180 studio

SKU CH-EE75-PHEWF

A 1/3 f-stop diffuser that softens and broadens output from the 180 cm Giant Reflector for even, flattering studio light

  • Reduces harsh shadows by softening and broadening the light source
  • Cuts output by exactly 1/3 f-stop for subtle exposure control
  • Silver interior preserves light quality while lowering intensity
  • Tailored fit for the 180 cm umbrella-style reflector
  • Works with both continuous and strobe Profoto heads

Diffuser for 180 cm Reflector

The Profoto 1/3 f-stop Diffuser fits the Profoto Giant Reflector 180 and attaches to compatible Profoto flash heads. It is intended for studio and location photographers who need precise, subtle light modification without changing the character of the output. The accessory works with both strobe and continuous lighting sources. It reduces intensity by exactly one-third of an f-stop while preserving light quality.

Even illumination and heat resistance

The silver interior maintains the light's character while softening and broadening the beam for flatter, more even coverage across the subject. Harsh shadows are reduced, creating a professional look suited to portraits and product work. The robust fabric construction withstands the heat output of Profoto heads during extended sessions. No active cooling or power draw is involved.

Build integration and workflow

The diffuser slips over the flash head and the 6' umbrella-style reflector for a secure, tool-free fit that stays aligned during repositioning. It leaves the head's mounting point and controls fully accessible, so power adjustments and triggering remain unchanged. The light weight adds negligible mass to the reflector assembly, keeping boom arms and stands balanced. It packs flat for transport between studio and location jobs.

Highlights

  • Reduces harsh shadows by softening and broadening the light source
  • Cuts output by exactly 1/3 f-stop for subtle exposure control
  • Silver interior preserves light quality while lowering intensity
  • Tailored fit for the 180 cm umbrella-style reflector
  • Works with both continuous and strobe Profoto heads

Specifications

No published specifications for this item yet.

Questions about this item

How do I attach the 1/3 f-stop diffuser to the Giant Reflector 180 without it slipping?

Stretch the elasticated opening over the silver interior of the reflector and seat it evenly around the rim; the common mistake is leaving a loose section that lets the diffuser billow when the flash fires.

What part of the diffuser wears out first and needs replacing?

The fabric coating degrades from heat and UV exposure, eventually yellowing or tearing at the tension points; swap the whole diffuser when the light shift becomes visible.

At what output level does the silver interior start to hotspot under continuous use?

Sustained high-power bursts from Profoto heads can create a bright centre spot on the silver surface after several minutes; drop the power or add a second diffusion layer to keep the spread even.

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