Diffusion Filter K&F Black Diffusion 1/4 Nano-X for Fujifilm X100 series (fits X100, X100S, X100F, X100V)

K&F Black Diffusion 1/4 Nano-X for Fujifilm X100 series is a screw-on diffusion (softening) filter engineered to fit the fixed-lens front of X100, X100S, X100F and X100V cameras. The filter produces mild diffusion that reduces local contrast and softens highlights while preserving overall image detail and sharpness in midtones. Constructed to mount directly to the camera’s front, it is intended for use when a subtle, film-like softening effect is required without heavy glow or loss of subject definition.

Advantages

This diffusion filter provides controlled softening with a 1/4 diffusion strength, reducing specular highlights and slightly lowering contrast while maintaining fine detail in midtones. The Nano-X surface treatment supports easier cleaning and resists fingerprints and dust, helping maintain consistent optical performance in field use. The filter’s dedicated fit for Fujifilm X100 series ensures correct alignment and a secure attachment to the camera front without modifying the lens.

Suitable for

• Portraits where gentle skin smoothing and highlight control are desired
• Street photography to reduce harsh specular highlights in urban scenes
• Low-light and available-light shooting to soften bright points without heavy flare
• Creative stills where a subtle vintage or film-like look is preferred

Key specifications

• Diffusion strength: 1/4 (mild)
• Compatibility: designed to fit Fujifilm X100, X100S, X100F, X100V front mount
• Optical finish: Nano-X coated surface for easier cleaning and reduced fingerprints
• Effect: lowers local contrast, softens highlights, preserves midtone detail
• Mount type: dedicated screw-on/press-fit to camera front (camera-specific fit)

How to use

Attach the diffusion filter to the front of a compatible Fujifilm X100 series camera according to the manufacturer’s mounting method, ensuring it is seated and aligned correctly. Compose and expose as you would normally; the filter reduces contrast and softens highlights, so standard exposure settings remain applicable, though you may wish to check highlights and shadow detail in the viewfinder or on the camera screen. For portraits, position subjects and light sources to benefit from softened specular highlights and natural skin rendering. Remove and store the filter in its case when not in use to avoid scratches.

Usage recommendations

Use this mild 1/4 diffusion for subtle softening rather than heavy glow; combine with careful lighting and composition to achieve film-like results while preserving subject detail. Clean with a soft microfiber cloth and avoid abrasive cleaners to maintain the Nano-X coating.