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A round 75mm frosted Pyrex glass disc 2.8mm thick

Profoto

Profoto 75mm Glass Cover Plus Uncoated Frosted 2.8mm Pyrex

SKU CH-BSAA-0KY6S

A 75mm frosted Pyrex glass cover that protects compatible Profoto flash heads while diffusing light for softer shadows

  • Protects flash heads from impacts with 75mm Pyrex glass
  • Uncoated frosted surface softens light for natural-looking photographs
  • 8mm thick Pyrex withstands high temperatures during extended use
  • Quick installation keeps workflow smooth on busy shoots
  • Designed for Profoto ProHead, Pro-B, Acute/D4 and AcuteB heads

Purpose & Fit

This 75 mm frosted Pyrex cover protects Profoto ProHead, Pro-B, Acute/D4 and AcuteB flash heads from impacts and wear. It is built for studio and location photographers who need reliable front-glass protection during daily shoots.

Thermals, Noise & Power

The 2.8 mm thick Pyrex construction withstands the high temperatures generated by compatible heads during extended sessions. As a passive glass accessory it adds no fan noise, draws no power and does not alter the head’s thermal behaviour.

Deciding Spec

The critical detail is the uncoated frosted finish, which diffuses output for softer shadows while maintaining maximum light transmission. Buyers who require a clear, non-frosted protector or a coated surface for a different light character should look elsewhere.

Highlights

  • Protects flash heads from impacts with 75mm Pyrex glass
  • Uncoated frosted surface softens light for natural-looking photographs
  • 8mm thick Pyrex withstands high temperatures during extended use
  • Quick installation keeps workflow smooth on busy shoots
  • Designed for Profoto ProHead, Pro-B, Acute/D4 and AcuteB heads

Specifications

No published specifications for this item yet.

Questions about this item

How do I fit the 75mm Glass Cover Plus onto a ProHead or Acute/D4 flash head, and what step is often missed?

Unscrew the existing cover ring, seat the 2.8mm Pyrex disc flat against the reflector rim, then re-tighten the ring evenly; the step often missed is checking that the frosted side faces the subject for correct diffusion.

What maintenance or replacement will the 75mm Glass Cover Plus need over time?

Inspect the uncoated frosted surface before each shoot; replace the 2.8mm Pyrex disc if it shows chips, cracks or a haze that cleaning cannot remove, as damage alters diffusion quality.

What is the first limit that appears when the 75mm Glass Cover Plus is used on a Pro-B head during long sessions?

The 2.8mm Pyrex handles sustained heat from the modelling lamp and flash tube, so the practical limit is physical impact resistance — a hard knock will fracture the glass before thermal stress does.

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