# Neutral Density Variable Filter K&F 46mm KF X Fader ND2–ND400 (adjustable)

**URL:** https://aio.lv/en/product--kf-sb7791--11415765
**Data updated:** 2026-03-07 20:06 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7791
**EAN:** 5904647816763
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.49 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 26.85 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7791--11415765

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Variable neutral density (ND) filter K&F for 46mm lenses, model KF X Fader, adjustable from ND2 to ND400. Designed to reduce light entering the lens to allow longer exposures, wider apertures, and motion blur effects in daylight. Compatible with lenses that accept 46mm screw-in filters; useful for landscape, long exposure, and video work where light control is required.

## Long description

The Neutral Density Variable Filter K&F 46mm KF X Fader ND2–ND400 is an adjustable screw-in ND filter designed for lenses with a 46mm filter thread. It provides a continuous density range from approximately 1 stop (ND2) to about 8.6 stops (ND400), allowing precise control of the amount of light reaching the image sensor. This filter is intended to enable longer shutter speeds, wider apertures in bright conditions, and controlled motion blur or shallow depth-of-field effects during daytime shooting. Constructed to be compact and easy to attach, it integrates with compatible lenses to expand creative exposure options for photography and videography.
Advantages
The variable ND design replaces the need to carry multiple fixed-density filters by offering a smooth, continuous adjustment across a wide attenuation range. It enables photographers and videographers to reduce exposure without changing aperture or ISO, supporting greater creative control over motion rendition and depth of field. The screw-in 46mm mount provides a secure fit on lenses that accept 46mm filters, maintaining optical alignment and minimizing vignetting on lenses with standard wide-to-tele focal lengths. The filter’s compact profile preserves working distance and is suitable for on-location use and travel setups.
Suitable for
Landscape photography requiring long exposures to blur water and clouds
Portrait or product work where wider apertures are needed in bright light
Video capture that requires consistent exposure control and motion blur
Street and travel photography where a compact, adjustable light control is useful
Key specifications
Filter type: Variable neutral density (continuously adjustable)
Density range: ND2 to ND400 (approximately 1 to 8.6 stops of light reduction)
Thread size: 46mm screw-in
Mount style: Front filter thread compatible with lenses accepting 46mm filters
Construction: slim profile designed to reduce vignetting on standard lenses
How to use
Attach the filter by screwing it onto a lens with a 46mm thread until it is secure but not overtightened. Rotate the front element to adjust the density continuously from ND2 to ND400 while observing exposure changes in the viewfinder or on the camera display. For photography, select a shutter speed and aperture appropriate for the creative effect you want (for example, longer shutter speeds for smooth water). For video, adjust the filter to maintain desired exposure while keeping shutter speed consistent with frame rate. When finished, unscrew the filter and store it in a protective case to avoid scratches.
Usage recommendations
To avoid cross-polarization or uneven darkening, set the filter to the desired density and make fine adjustments while monitoring the image. Use the lower end of the range for subtle exposure control and the higher end for strong motion blur; be mindful that extreme settings can introduce color shifts or require additional post-processing correction. Clean filter surfaces gently with a microfiber cloth and appropriate cleaning solution to maintain image quality.

## FAQ

### How much does the Neutral Density Filter K&F 46mm KF X Fader cost, and is it available for purchase?

The price is 32.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All K&F products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized K&F service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11415765/66058392_large.webp