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Cokin

Cokin P666 B1 Fluo Graduated Filter (Blue)

Add Creative Flair to Your Photography Introducing the Cokin P666 B1 Fluo Graduated Filter. Designed to enhance skies and add a touch of creativity to your landscape photography. Its graduated design allows you to selectively add color and density where it's needed most. Filter Type: Hard...

$29.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Add Creative Flair to Your Photography

Introducing the Cokin P666 B1 Fluo Graduated Filter. Designed to enhance skies and add a touch of creativity to your landscape photography. Its graduated design allows you to selectively add color and density where it's needed most.

  • Filter Type: Hard-edge graduated fluorescent blue 1
  • Filter Shape: Rectangle
  • Density: 1 2/3-stop
  • Application: Enhancing dull, flat, or hazy skies

Key Features

Adds a blue tint to images

Allows colour enhancement without changing the subject

Brightens and intensifies blues in any image

Part of the Cokin P-series square-filter system

Includes protective case

Specifications

Filter Type
Fluo Graduated Filter
Color
Blue
Series Compatibility
Cokin P-series
Included Accessory
Protective Case

Pros & Cons

👍 Pros

  • Adds a distinct blue tint to images for creative photographic effects
  • Allows for vivid color enhancement without altering the subject's natural appearance
  • Effectively brightens and intensifies blue tones within any captured photograph
  • Integrates seamlessly into the Cokin P-series square-filter system for versatile use
  • Comes with a protective case, providing convenient storage and transport for the filter

👎 Cons

  • Primarily designed for blue color enhancement, limiting its application for other color adjustments
  • Requires the Cokin P-series holder system for proper attachment and functionality
  • The specific graduated effect is fixed, offering less flexibility than digital post-processing
  • Adding a physical filter can potentially introduce subtle reflections or light loss
  • Being a physical filter, it occupies space and requires careful handling to avoid scratches

Frequently Asked Questions

This filter adds a blue tint to your images, specifically designed to brighten and intensify blue tones, allowing for color enhancement without changing the subject itself.
The Cokin P666 B1 Fluo Graduated Filter is part of the Cokin P-series square-filter system, meaning it requires a Cokin P-series filter holder and adapter ring specific to your lens diameter.
Yes, this Cokin P666 B1 Fluo Graduated Filter includes a protective case, which helps safeguard it from dust and scratches when not in use.
While it can be used for landscapes, its primary function is to add a blue tint and intensify blues, making it particularly effective for scenes where you want to enhance skies or water.
The filter is designed for color enhancement primarily by brightening and intensifying blues, allowing for this specific color adjustment without broadly changing other colors in the subject.

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