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K&F Concept Nano-X Pro High-Definition Circular Polarizing Filter (52mm)

BH #KFNXPROCPL52 • MFR #KF01.2309
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K&F Concept Nano-X Pro High-Definition Circular Polarizing Filter (52mm)
Key Features
  • Circular Polarizing Filter
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
  • Improved Color and Tonal Saturation
The 52mm Nano-X Pro High-Definition Circular Polarizing Filter from K&F Concept is designed to reduce glare and reflections from nonmetallic surfaces and increase saturation and vibrancy in the sky and foliage while ensuring true color reproduction. The optical glass filter features 36-layer nano coating, which reduces unwanted reflections and glare while providing a waterproof and scratch-resistant layer. The protective nano coating makes this filter suitable for use in harsh environments and it's easy to clean. The 52mm slim brass frame design is durable, features side knurling for easy grip, and prevents vignetting when used with wide angle lenses.
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K&F Concept Nano-X Pro Brass Frame CPL Overview

The 52mm Nano-X Pro High-Definition Circular Polarizing Filter from K&F Concept is designed to reduce glare and reflections from nonmetallic surfaces and increase saturation and vibrancy in the sky and foliage while ensuring true color reproduction. The optical glass filter features 36-layer nano coating, which reduces unwanted reflections and glare while providing a waterproof and scratch-resistant layer. The protective nano coating makes this filter suitable for use in harsh environments and it's easy to clean. The 52mm slim brass frame design is durable, features side knurling for easy grip, and prevents vignetting when used with wide angle lenses.

  • Optical glass construction
  • Ultrathin brass filter ring
  • Reflectivity as low as 0.15%
  • Eliminates 99.2% of polarized light for 45% light transmittance
  • Double-sided 36-layer nano coating
  • Handmade leather filter case
  • 10-year manufacturer's warranty

K&F Concept Nano-X Pro Brass Frame CPL Specs

Filter Type
Circular Polarizer
Size
52 mm Rear Filter Thread
Front Accessory Thread / Bayonet
52 mm
Coating
Multi- & Resistance-Coated
Filter Material
Glass
Ring Material
Brass
Packaging Info
Package Weight
0.51 lb
Box Dimensions (LxWxH)
6.7 x 6.5 x 1.1"

K&F Concept Nano-X Pro Brass Frame CPL Reviews

Works great

By Kevin
Rated 5 out of 5
Date: 2025-10-16

Works great to bring out Fall colors. Also I was able to photograph salmon at the local fish hatchery thru the glare. Got some nice photos of folks fishing

Good filter

By Bill
Rated 5 out of 5
Date: 2025-08-27

Works as expected. Haven’t noticed any distortion or other issues

See any errors on this page?

45% light transmittance sounds pretty low ...

45% light transmittance sounds pretty low compared to other CPL filters. Is it correct product description?
Asked by: Shabbir
The 45% light transmittance on the K&F Concept Nano-X Pro High-Definition Circular Polarizing Filter (77mm) is about average for most polarizing filters. Other brands would list it as around 1.25 stops of light.
Answered by: Rob K
Date published: 2025-12-13

Looks like I can use this one on my Olympus 50-200

Looks like I can use this one on my Olympus 50-200mm with an access door on the hood. Am I correct? Thanks.
Asked by: David
Yes, the front element of the K&F Concept Nano-X Pro High-Definition Circular Polarizing Filter (77mm) can be used with the OM SYSTEM M.Zuiko Digital ED 50-200mm f/2.8 IS PRO Lens (Micro Four Thirds) through the access door on the lens hood.
Answered by: Samik G
Date published: 2026-05-06

The filter factor is not listed here. On the K&F ...

The filter factor is not listed here. On the K&F website, it is listed as 1.3 stops. You're welcome?
Asked by: John
The K&F Concept Nano-X Pro High Definition Circular Polarizing Filter (${Size}) does have a filter factor of 1.3 stops.
Answered by: Lawrence C
Date published: 2023-11-20
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