# Neutral Density Variable Filter K&F 49mm Fader ND8–ND2000 (model SB6574)

**URL:** https://aio.lv/en/product--kf-sb6574--4825130
**Data updated:** 2026-03-07 15:00 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB6574
**EAN:** 6936069281743
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 37.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb6574--4825130

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Variable neutral density (ND) filter by K&F with 49mm thread, model SB6574. Provides adjustable light reduction from approximately ND8 to ND2000 for controlling exposure, enabling slower shutter speeds and wider apertures in bright conditions. Useful for landscape, long-exposure, and motion-blur photography; fits lenses with 49mm filter thread.

## Long description

The Neutral Density Variable Filter K&F 49mm Fader ND8–ND2000 (model SB6574) is a screw-on optical filter designed for lenses with a 49mm filter thread. It provides continuous attenuation of incoming light, with an adjustable range from approximately ND8 up to ND2000. This variable ND filter helps control exposure in bright conditions, allowing photographers to use slower shutter speeds or wider apertures without overexposing the image. The compact, metal-frame design fits standard 49mm lenses and is suitable for field and studio use where flexible light reduction is required.
Advantages
The filter offers a wide, continuously variable density range that covers mild to very strong light reduction, enabling precise exposure control. Its screw-in 49mm mount ensures compatibility with lenses that accept 49mm filters and provides a secure attachment. Multi-coated optical elements reduce reflections and maintain color neutrality while lowering the risk of flare. The metal frame provides durability and stable threading for repeated attachment and removal.
Suitable for
 Landscape photography with long exposures to smooth water and cloud motion
 City and architecture shots requiring motion blur at daytime
 Portraits and shallow depth-of-field work in bright light using wide apertures
 Time-lapse sequences and cinematic video where controlled shutter speed is needed
Key specifications
 Filter type: Variable neutral density (continuous ND)
 Density range: approximately ND8 to ND2000
 Mount thread size: 49mm screw-in
 Frame material: metal
 Coatings: multi-coated optical surfaces to reduce reflections and flare
 Primary function: adjustable light attenuation for exposure control
How to use
Screw the filter onto the front of a lens with a 49mm filter thread until it is snug but not overtightened. Rotate the outer ring to adjust the density and preview exposure changes through the viewfinder or live view. For long exposures, select a shutter speed appropriate for the motion effect you want and then fine-tune the filter rotation to reach the correct exposure. When using wide apertures in bright light, increase density until the desired aperture and shutter speed combination is achievable without overexposure. Check for vignetting at wide focal lengths and reduce density or crop if necessary.
Usage recommendations
Avoid stacking multiple dense filters with the variable ND at high attenuation settings to reduce the chance of uneven darkening or cross-polarization effects. When shooting landscapes or long exposures, use a tripod and remote release or self-timer to minimize camera shake. Store the filter in a protective case when not in use and clean the optical surfaces with a microfiber cloth and lens-safe cleaning fluid.

## FAQ

### How much does the K&F Variable ND Filter 49mm SB6574 cost, and is it available for purchase?

The price is 44.99 € (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 14.07.2026 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/4825130/30330875_large.webp