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K&F Concept Nano-X Series MCUV Filter (37mm)

BH #KFNXMCUVF37 • MFR #KF01.979
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K&F Concept Nano-X Series MCUV Filter (37mm)
Key Features
  • Protective Filter
  • Absorbs Ultraviolet Light
  • 99.6% Light Transmission
  • Japanese AGC Optical Glass
Designed to absorb ultraviolet light, the 37mm Nano-X Series MCUV Filter from K&F Concept is a protective filter that offers 99.6% light transmission. Aside from the reduction of UV light, this filter also helps to prevent dust, scratches, fingerprints, and other substances from reaching or damaging your lens. It reduces haze and improves contrast to ensure true colors and deliver high-definition images.
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K&F Concept Nano-X MCUV Overview

Designed to absorb ultraviolet light, the 37mm Nano-X Series MCUV Filter from K&F Concept is a protective filter that offers 99.6% light transmission. Aside from the reduction of UV light, this filter also helps to prevent dust, scratches, fingerprints, and other substances from reaching or damaging your lens. It reduces haze and improves contrast to ensure true colors and deliver high-definition images.

Ultra-Slim Frame
The 3.3mm-thick aluminum filter frame prevents vignetting with its slim design.
Full Protection
This Japanese AGC optical-glass filter features a 28-layer nano coating to repel oil and water while preventing scratches.

K&F Concept Nano-X MCUV Specs

Filter Type
UV
Size
37 mm Rear Filter Thread 
Front Accessory Thread / Bayonet
37 mm
Coating
Multi- & Resistance-Coated
Filter Thickness
0.1" / 3.3 mm
Filter Material
Glass
Ring Material
Aluminum
Packaging Info
Package Weight
0.175 lb
Box Dimensions (LxWxH)
4.7 x 4.4 x 0.6"

K&F Concept Nano-X MCUV Reviews

Works Great in Limited Testing

By Neil
Rated 5 out of 5
Date: 2025-04-23

I'm using the filter on a Nikon 24-200 lens, and so far it's working great. Nice fit and no problems with image quality. I've shot only a few frames, though. The bigger test will come in the next month or so as I travel to Europe for a two-week vacation.

Works Transparently

By Nicholas
Rated 5 out of 5
Date: 2025-01-04

I've been using the K & F Nano-X Concept filters on all of my RF lenses and have found them to be excellent. No visible light loss, ghosting or resolution loss and the mounts are thin enough that there is no apparent vignetting on wide lenses. Threading is correct, never too tight or rough and the outer coating seems to be pretty dust resistant.

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