Filter kit K&F Concept 2-in-1 Black Diffusion filters 1/4 and 1/8 for 72mm lenses

The K&F Concept 2-in-1 Black Diffusion filters for 72mm lenses are a two-piece kit designed to introduce controlled softening and subtle highlight bloom for photography and video. The set includes two diffusion strengths — 1/4 and 1/8 — that attach to any lens with a 72 mm filter thread. These filters reduce local contrast and soften specular highlights while maintaining overall exposure, making them useful for portraiture, landscape scenes and atmospheric videography.

Advantages

Both diffusion elements are color-neutral and engineered to preserve tonal balance while creating a gentle glow around bright areas. The two strengths give photographers and filmmakers flexibility to choose a mild or more pronounced diffusion effect without relying on post-processing. The 72 mm screw mount provides secure attachment and straightforward compatibility with lenses that accept 72 mm filters, enabling quick changes in the field.

Suitable for

• Portrait photography to soften skin highlights and reduce micro-contrast
• Landscape and cityscape scenes where atmospheric haze or glow is desired
• Video production to achieve cinematic softening and reduce harsh speculars
• On-location shoots requiring subtle diffusion without significant exposure change

Key specifications

• Filter type: diffusion/softening
• Included strengths: 1/4 diffusion and 1/8 diffusion
• Mount thread size: 72 mm screw-in
• Optical characteristic: neutral color transmission with reduced local contrast
• Material: optical-grade glass or resin element with metal frame (construction optimized for field use)

How to use

Screw the chosen diffusion filter onto the front of any lens with a 72 mm thread. Select the 1/8 filter for a subtle softening effect or the 1/4 filter for stronger diffusion. Compose and focus normally; the diffusion primarily affects highlight bloom and micro-contrast rather than overall sharpness at normal viewing sizes. When precise critical detail is required, remove the filter; when a softer, cinematic look is preferred, leave the filter mounted. Clean the filter surfaces with a lens-safe cloth and solution before and after use to maintain optical performance.

Usage recommendations

Use the 1/8 element for gentle smoothing of skin and slightly softened highlights; switch to the 1/4 element for more pronounced glow or when shooting under bright point light sources. Combine the filter with moderate aperture settings for balanced depth of field, and consider testing both strengths at the intended shooting distance to determine the optimal effect for your subject and lighting.