Item Includes

• Canon PL-C 52 (WIII) Drop-In Circular Polarizer

• Built-in Canon Drop-In Filter Holder (polarizer factory-installed)

Product Overview

This Canon drop-in circular polarizing filter is designed for select Canon super-telephoto lenses that do not support standard front-mounted filters. The polarizer is permanently housed inside a dedicated drop-in cartridge, allowing it to slide easily into the lens filter slot for quick installation and removal in the field.

Ideal for sports, wildlife, and outdoor photography, this filter helps improve overall image quality while maintaining the convenience expected from Canon’s professional lens system.

Features

• Genuine Canon PL-C 52 (WIII) circular polarizer

• Drop-in design for compatible super-telephoto lenses

• Reduces reflections and glare from non-metallic surfaces such as water and glass

• Enhances color saturation and overall contrast

• Minimizes atmospheric haze for clearer long-distance shots

• Strongest effect when used at approximately a 90° angle to the sun

• Engineered for seamless compatibility with select Canon lenses

Specifications

• Filter Type: Circular Polarizer (CPL)

• Model: PL-C 52 (WIII)

• Mount Type: Canon Drop-In System

• Internal Filter Size: 52mm

• Construction: Permanently mounted polarizer within drop-in holder 

• For Canon EF 400mm f/2.8L IS III USM and Canon EF 600mm f/4L IS III USM