C-PL Circular Polarizer Multicoated 55mm - Slim, Multithreaded Filter

Our review of the C-PL Circular Polarizer Multicoated 55mm focuses on photographers and videographers using the Sony Cyber-shot DSC-HX400 who need a compact, rugged polarizer that reduces reflections and deepens skies without adding bulk. The bottom line: this filter delivers reliable polarization with a slim, multithreaded metal ring that minimizes vignetting while letting you stack accessories on top. For anyone wanting a simple way to improve contrast and control glare on a bridge or landscape shoot, the C-PL offers clear benefits in a durable package.

Key Features

• Polarizing Strength: Between 2.3 and 2.8 (about +1.3 stops) provides noticeable reduction of reflections and improved color saturation for outdoor scenes.
• Rugged Metal Ring: The black-finish metal filter ring resists wear and provides a secure, long-lasting mount for regular use in the field.
• Heat Treated Glass: Heat treatment improves glass durability and optical stability, reducing the chance of damage from temperature changes.
• Slim Design: A thin profile minimizes vignetting on wide-angle shots, which is useful on the HX400's shorter focal lengths.
• Multicoated Surface: Multi-layer coatings reduce ghosting and flare, making the filter suitable for both video and photography.
• Multithreaded Mount: Multithreaded construction lets you mount other lenses or filters on top without removing the polarizer.

Who It's For

The C-PL is ideal for hobbyists and enthusiast photographers using the Sony Cyber-shot DSC-HX400 who want an affordable, durable polarizer to cut reflections and deepen colors during outdoor shooting. Its slim profile benefits those shooting landscapes or architecture where vignetting from thick filters can be an issue.

Advanced users needing ultra-high precision optical coatings or those who require variable ND functionality should look elsewhere, but for everyday use on a compact bridge camera the C-PL is a practical, value-oriented choice.

Pros & Cons

Pros

• Improves contrast and reduces reflections with an effective polarizing strength of roughly +1.3 stops.
• Durable metal filter ring and heat treated glass offer field-ready toughness.
• Slim design reduces the risk of vignetting on wide-angle shots.
• Multithreaded mount makes stacking filters or attaching accessories straightforward.

Cons

• Coating and performance are appropriate for consumer and enthusiast use but may not match professional-grade optical systems.
• Fixed polarizer strength means no on-the-fly variable density control for exposure beyond polarization.

Specifications

Filter Type	Circular Polarizer (C-PL)
Size	55mm
Polarizing Effect	Between 2.3 and 2.8 (approx. +1.3 stops)
Ring Material	Rugged metal, black finish
Glass	Heat treated
Coating	Multicoated for video and photography
Mount	Multithreaded for mounting lenses or filters on top

Our Verdict

The C-PL 55mm is a solid, value-oriented circular polarizer for Sony Cyber-shot DSC-HX400 users who want better contrast and fewer reflections without bulky hardware. Its slim, multithreaded metal ring and multicoated, heat treated glass make it rugged and practical for outdoor photography, and the modest polarizing strength is well suited to everyday landscape and travel shooting.

Frequently Asked Questions

Will this filter cause vignetting on the HX400?
Its slim design is intended to minimize vignetting, especially useful at wider focal lengths on compact bridge cameras like the HX400.

Can I stack other filters on top?
Yes, the multithreaded mount lets you attach additional filters or accessories on top without removing the polarizer.

Is the glass durable for outdoor use?
Yes, the glass is heat treated and the metal ring is rugged, which improves durability for field shooting.