Moment Cinebloom Diffusion Filter 37mm - Subtle Film Glow

In this review of the Moment Cinebloom Diffusion Filter 37mm, the bottom line is simple: photographers and filmmakers who want a subtle, film-like glow without sacrificing clarity will find great value here. The filter softens hard edges and reduces digital sharpness while preserving detail thanks to Schott B270 optical glass, so it is ideal for creative work where a controlled bloom is desired. The 5% strength tested here gives a gentle diffusion that keeps highlights natural and avoids an overtly smeared look.

Key Features

• Dreamy, Cinematic Look: Softens hard edges and adds a natural glow to highlights so images feel like true film without heavy processing.
• Professional Optical Glass: Made from Schott B270 glass to deliver exceptional clarity and avoid color shift or image degradation.
• Compact Compatibility: Fits lenses with standard threads from 37mm to 82mm, making it useful across DSLR, mirrorless, and cinema lenses.
• Stackable Design: Can be stacked with ND and VND filters to maintain exposure control while keeping the soft diffusion effect.
• Multiple Strengths: Available in 5%, 10%, and 20% diffusion so users can choose a subtle softening or a stronger vintage-inspired bloom.

Who It's For

The Cinebloom 37mm 5% is well suited to mobile shooters, mirrorless users, or anyone using smaller-diameter lenses who wants a gentle diffusion to reduce the clinical sharpness of digital capture. It works particularly well for portrait, wedding, and cinematic sequences where a hint of glow enhances skin tones and highlights.

Those needing heavier diffusion or a stronger vintage look should consider the 10% or 20% strengths instead, and photographers who never want any softening or who require extreme microcontrast might prefer to shoot clean and grade in post.

Pros & Cons

Pros

• Excellent glass quality delivers the diffusion effect without color cast or resolution loss.
• Subtle 5% strength provides a natural bloom that preserves detail for both photo and video.
• Stackability with ND and VND filters keeps exposure options flexible for filmmakers.

Cons

• A very subtle effect at 5% may be too mild for users seeking a pronounced vintage glow.

Specifications

Product	Moment Cinebloom Diffusion Filter (5%, 37mm)
Diffusion Strength	5% (also 10% and 20% available)
Glass	Schott B270 professional-grade optical glass
Compatibility	Fits lenses with 37mm to 82mm standard threads
Recommended Size	67mm recommended for Moment lenses and filter mounts
Stackable	Yes, compatible with ND and VND filters
Warranty	Lifetime guarantee

Our Verdict

The Moment Cinebloom 37mm 5% is a refined diffusion filter for creatives who want a film-like softness without unwanted color shifts or detail loss. Its Schott glass and stackable design make it a practical choice for portrait and cinematic work, and the mild 5% strength is good value for those after a subtle, professional-looking glow.

Frequently Asked Questions

Will this change my colors?
The Schott B270 optical glass is designed to avoid color shift, so colors remain natural while highlights gain a gentle glow.

Can I stack it with other filters?
Yes, the Cinebloom is stackable with ND and VND filters to retain exposure control while keeping the diffusion effect.

Which strength should I choose?
The 5% provides a subtle softening; choose 10% or 20% for progressively stronger vintage-inspired bloom.