Moment Cinebloom Diffusion Filter 20% (52mm) - Cinematic Glow

In this review the Moment Cinebloom Diffusion Filter (20%, 52mm) is evaluated for photographers and filmmakers who want a softer, film-like aesthetic without losing image clarity. The bottom line: this filter delivers a noticeable, pleasing bloom on highlights that reduces digital sharpness while preserving color and detail thanks to its Schott B270 optical glass construction, making it ideal for portrait, cinematic, and mobile lens work where a gentle, vintage-inspired glow is desired.

Key Features

• Dreamy, cinematic look: Softens hard edges and reduces digital sharpness to create a natural glow on highlights that mimics classic film rendering.
• Professional-grade glass: Built with Schott B270 optical glass to maintain exceptional clarity with no color shift and zero image degradation.
• Wide lens compatibility: Works with lenses that use standard thread sizes from 37mm to 82mm, making it useful across DSLR, mirrorless, and cinema lenses.
• Stackable design: Can be stacked with ND and VND filters so you can keep exposure control while adding diffusion to footage and photos.
• Multiple strengths available: The 20% strength shown here gives a bold softening and bloom, while 5% and 10% options allow more subtle effects to suit different styles.
• Lifetime backing: Supported by Moment's lifetime guarantee for long-term professional use and confidence in build quality.

Who It's For

The Cinebloom 20% is best for portrait and cinematic shooters who want a pronounced diffusion effect that still keeps skin tones and highlights looking natural. It suits mobile filmmakers using Moment lens systems as well as photographers using standard-threaded lenses who want to reduce digital edge hardness without resorting to heavy post production.

Those who should look elsewhere include shooters who need razor-sharp clinical detail for technical work or extreme telephoto sports shooting, and anyone who requires a fully neutral, no-effect optical path; for that use a clear protective filter is a better choice.

Pros & Cons

Pros

• Produces a pleasing, film-like bloom that reviewers and customers describe as reducing the digital look while maintaining usable detail.
• Schott B270 glass ensures clarity and avoids color casts, so images retain accurate tones.
• Compatible with a broad range of lens thread sizes and stacks cleanly with ND/VND filters for exposure control.
• Available in multiple diffusion strengths to match subtle to bold creative intentions.

Cons

• The 20% strength is deliberately noticeable and may be too pronounced for users seeking only the slightest softening.
• Recommended 67mm size for Moment systems suggests careful size selection is needed for the best fit on mobile lens mounts.

Specifications

Product	Moment Cinebloom Diffusion Filter
Diffusion strength	20% (also available in 5% and 10%)
Filter diameter	52mm (fits range 37mm to 82mm thread sizes)
Optical material	Schott B270 professional-grade glass
Stackable	Yes, compatible with ND and VND filters
Recommended size for Moment gear	67mm recommended for Moment lenses and filter mounts
Warranty	Lifetime guarantee

Our Verdict

The Moment Cinebloom 20% diffusion filter is a strong choice for creatives who want a clear, reliable way to add a cinematic bloom and soften digital sharpness while preserving color fidelity. It represents good value for portrait and filmmaking work due to its Schott glass construction, stackability, and available strengths, though those seeking only imperceptible softening should consider a lower percentage.

Frequently Asked Questions

Will this change my colors?
The filter uses Schott B270 glass specifically to avoid color shift, so color fidelity is retained.

Can I stack this with ND filters?
Yes, the filter is designed to stack with ND and VND filters to keep exposure control while adding diffusion.

Which strength should I pick?
20% provides a bold, vintage-inspired glow; choose 5% or 10% for subtle softening.