---
product_id: 521975971
title: "K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series)"
brand: "k&f concept"
price: "₩314268"
currency: KRW
in_stock: false
reviews_count: 6
category: "K&F Concept"
url: https://www.desertcart.kr/products/521975971-k-and-f-concept-49mm-black-diffusion-1-4-nd2
store_origin: KR
region: South Korea
---

# Waterproof & dustproof nano-coatings 7.4mm aerospace-grade slim frame Variable ND2~400 stops K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series)

**Brand:** k&f concept
**Price:** ₩314268
**Availability:** ❌ Out of Stock

## Summary

> 🎥 Elevate your visuals with the ultimate all-in-one filter — don’t just shoot, create magic!

## Quick Answers

- **What is this?** K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) by k&f concept
- **How much does it cost?** ₩314268 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/521975971-k-and-f-concept-49mm-black-diffusion-1-4-nd2)

## Best For

- k&f concept enthusiasts

## Why This Product

- Trusted k&f concept brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Waterproof, scratch-resistant, dustproof, and oil-proof for rugged, worry-free shooting.
- • **Flawless Clarity:** HD AGC optical glass with 28 nano-coated layers minimizes glare, flare, and reflections.
- • **Sleek & Secure Fit:** Ultra-thin 7.4mm aerospace aluminum frame prevents vignetting and ensures effortless rotation.
- • **Dual-Function Mastery:** Seamlessly switch between variable ND and black diffusion for ultimate creative control.
- • **Precision Light Control:** Adjust ND value smoothly from 2 to 400 stops to capture perfect long exposures anytime.

## Overview

The K&F CONCEPT 49mm Nano-X Series filter combines a variable ND2~400 and 1/4 black diffusion filter in one, crafted from HD AGC optical glass with 28 multi-layer nano coatings for superior image quality. Its slim 7.4mm aerospace-grade aluminum frame prevents vignetting and offers smooth adjustment. Waterproof, scratch-resistant, and dustproof, this multifunctional filter is designed for professional-grade creative flexibility and durability.

## Description

Shop K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series). Free delivery and returns on eligible orders.

Review: The product was in excellent condition. Everything is fine. - The product was in excellent condition. Everything is fine.
Review: Möchte den Filter gar nicht mehr von der Linse nehmen. So vielseitig anwendbar und mein liebstes Add-On.

## Features

- Multifunctional variable black soft 1/4 & ND2~400 filters: one filter with two functions, can be used as a variable ND filter or as a black diffusion filter. 1/4 black diffusion filter with standard transmittance: 84%
- Filter function: The ND value can be adjusted by rotating the lens to make it easier to shoot with reduced light and for longer periods of time, while the black mist reducing contrast in the image and preserving darker details while softening the light.
- 28 Multi-Layer Coatings: Both sides of the glass with nanometer coatings, utmost reduce the glaring and flares, waterproof, scratch-resistant, dustproof, and oil-proof, protecting your camera lens from all-rounds.
- HD Optical Glass: This filter kit is made of HD AGC optical glass, effectively reducing reflection from the filter itself and avoid glare, ensuring a high-quality image.
- No Vignetting: Aerospace grade aluminium frame, only 7.4mm thick, effectively avoiding vigneting, CNC trapezoidal pattern design increases friction, easier to rotate and install.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BLN9NQGS |
| Best Sellers Rank | 28 in Photography Grey Filters |
| Brand | K&F CONCEPT |
| Customer Reviews | 4.6 4.6 out of 5 stars (209) |
| Date First Available | 7 Nov. 2022 |
| Focus type | Manual |
| Guaranteed software updates until | unknown |
| Item model number | KF01.2016 |
| Package Dimensions L x W x H | 12 x 11.8 x 2.5 centimetres |
| Package Weight | 0.06 Kilograms |
| Part number | KF01.2016 |
| Photo Filter Effect Type | Neutral Density |
| Photo Filter Thread Size | 49 Millimetres |
| Product Dimensions L x W x H | 37 x 37 x 37 centimetres |
| Size | 49MM |
| Warranty description | 365-Days |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** K&F CONCEPT
- **Coating description:** Multi Coating
- **Material:** Aluminium
- **Photo Filter Factor:** 400 x
- **Photo Filter Size:** 49 Millimeters
- **Photo filter effect type:** Neutral Density
- **Photo filter thread size:** 49 Millimetres
- **Product dimensions:** 49L x 49W millimetres
- **Water resistance level:** Waterproof

## Images

![K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) - Image 1](https://m.media-amazon.com/images/I/71DL3HIHiiL.jpg)
![K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) - Image 2](https://m.media-amazon.com/images/I/71-4B5QGErL.jpg)
![K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) - Image 3](https://m.media-amazon.com/images/I/71QXafTr55L.jpg)
![K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) - Image 4](https://m.media-amazon.com/images/I/71mYFkrOlzL.jpg)
![K&F CONCEPT 49mm Black Diffusion 1/4 & ND2~400 Filter, Multifunctional Variable ND Mist Filters Waterproof Soft Diffusion Adjustable Neutral Density(Nano-X Series) - Image 5](https://m.media-amazon.com/images/I/71RvdZ2gS8L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What size lens cap does the VND filter correspond to?**
A: This product can be installed with a lens cap, but the lens cap needs to be one size larger than this product. (For example: a 67mm variable ND filter requires a 72mm lens cap)

**Q: Does vignetting occur when shooting?**
A: Taking pictures: There is vignetting up to 18mm, and it is recommended to use 19mm or later. Taking videos: There is slight vignetting at 16mm, and it is recommended to use 17mm or later.

**Q: Can this product be used with a lens hood?**
A: This product cannot be used with a lens hood.

**Q: Can I layer other filters when using the Variable VND?**
A: It can be superimposed. If stacking other filters behind an adjustable filter, it needs to be one size larger. E.g., 67mm adjustable ND filter, other filters require 72mm

**Q: What are the differences between the K series, D series, and X series?**
A: The K series has 18 layers of coating and non-HD. The D series has 24 layers of coating and HD. And the X series has 28 layers of coating and HD, as well as being easy to clean and having a high anti-scratch rating.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The product was in excellent condition. Everything is fine.
*by V***K on 5 October 2025*

The product was in excellent condition. Everything is fine.

### ⭐⭐⭐⭐⭐ Review
*by M***L on 22 August 2025*

Möchte den Filter gar nicht mehr von der Linse nehmen. So vielseitig anwendbar und mein liebstes Add-On.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 5 May 2025*

Goed product, zoals beschreven. Zoals altijd snel en goed.

## Frequently Bought Together

- K&F Concept 49mm Black Diffusion Mist 1/4 Effect & Variable ND2-400 (1-9 Stops) Neutral Density Filter 2 in 1, Putter Adjust Multi-Function Filter for Camera Lens with 28 Multi-Coated (Nano-X Series)
- K&F Concept 49mm Black Diffusion 1/4 & 1/8 Lens Filter Kit (2 Pcs), Mist Cinematic Effect Filter for Vlog/Video/Portrait Image with 28 Multi-Layer Coated

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**Shop now:** [https://www.desertcart.kr/products/521975971-k-and-f-concept-49mm-black-diffusion-1-4-nd2](https://www.desertcart.kr/products/521975971-k-and-f-concept-49mm-black-diffusion-1-4-nd2)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-05-08*