Cokin

Cokin P820 Filter P Diffuser Light

5.0 (2 reviews)

Gentle P-series diffusion filter that softens details and reduces contrast for a dreamy photographic look.

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Overview

The Cokin P820 Diffuser Light Filter is a creative tool designed for photographers who want to introduce a gentle softening effect into their images. As part of Cokin's P-series, the filter slots into a modular holder system that can be adapted to fit a wide range of lens diameters, making it a versatile addition to any camera bag. The light diffusion effect works by subtly scattering light as it passes through the filter, which reduces fine detail sharpness and lowers contrast across the frame.

This makes the P820 particularly well-suited for portrait photography, where a slight softness can minimize skin imperfections and create a more flattering rendition of your subject. It also lends a dreamy, atmospheric quality to landscapes and still-life compositions. Because this is a "light" diffuser, the effect remains restrained — you get a noticeable softness without losing the overall structure of your image, which distinguishes it from heavier diffusion filters that can make photos appear foggy or out of focus.

Key Features

Fits Cokin P-Series filter holder

Specifications

Brand
Cokin
Model
P820
Filter Type
Diffuser
Series
P
Effect
Light Diffusion

Pros & Cons

👍 Pros

  • Light diffusion effect adds a pleasing softness without completely obscuring detail
  • Compatible with the widely available Cokin P-series holder system
  • Resin construction is lightweight and shatter-resistant
  • Can be stacked with other P-series filters for combined effects

👎 Cons

  • Requires a separate Cokin P-series filter holder and adapter ring to use
  • Resin material is more prone to scratching than glass filters
  • Only one diffusion strength available, with no option to vary the intensity
  • Fixed effect cannot be adjusted or dialed back once in place

Frequently Asked Questions

The P820 is part of Cokin's P-series filter system, which uses a universal holder that fits a wide range of lens sizes with the appropriate adapter ring.
The P820 provides a light diffusion effect, offering subtle softening rather than heavy blur, so your images retain recognizable detail with a gentle glow.
Yes, the Cokin P-series holder is designed to accept multiple filters simultaneously, so you can combine the P820 with other P-series filters.
Cokin P-series filters are made of optical resin, which keeps them lightweight and resistant to shattering compared to glass filters.