# K&F Adjustable Neutral Density Filter ND3–ND1000, 37 mm (KF01.2054)

**URL:** https://aio.lv/en/product--kf-sb7469--11878401
**Data updated:** 2026-03-09 20:43 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7469
**EAN:** 5904647814684
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 37.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7469--11878401

## 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

Adjustable neutral density (ND) filter from K&F, model KF01.2054, fitting 37 mm thread. Provides variable attenuation from ND3 to ND1000 to control exposure, enable longer shutter speeds, and reduce light for video or long-exposure photography. Useful for landscape, motion blur effects, and bright-light shooting where aperture or shutter control alone is insufficient.

## Long description

The K&F Adjustable Neutral Density Filter ND3–ND1000, 37 mm is a variable-density optical filter designed to control light entering the lens. It fits lenses with a 37 mm front thread and provides smooth, continuous attenuation from approximately ND3 to ND1000. The filter lets photographers and videographers reduce exposure without changing aperture or shutter speed settings, enabling longer shutter speeds, motion blur effects, and wider apertures in bright conditions.
Advantages
The adjustable ND design replaces multiple fixed-density filters by offering a continuous range of light reduction, simplifying kit composition and on-location adjustments. Machined circular filter frame ensures reliable mounting on compatible 37 mm threads, while multi-coated optical glass reduces reflections and preserves color neutrality. The compact, lightweight construction makes it suitable for travel and handheld shooting, and the variable attenuation allows precise control over exposure and depth-of-field effects.
Suitable for
Landscape photography requiring long exposures to smooth water and cloud movement
Portraits or video where wider apertures are needed in bright light
Motion blur techniques for subjects such as waterfalls, traffic, or moving crowds
Time-lapse and cinematic video to control shutter angle and frame exposure
Key specifications
Filter type: adjustable (variable) neutral density
Light attenuation range: approximately ND3 to ND1000
Mount size: 37 mm screw thread for front of lens
Optical material: multi-coated glass (anti-reflection coatings)
Construction: circular metal frame compatible with 37 mm lens threads
Weight and dimensions: compact, lightweight design suitable for travel and handheld use
How to use
Screw the filter onto the lens front with the camera turned off or lens cap on to avoid accidental contact with the sensor or mirror. Rotate the adjustable ring to set the desired level of attenuation while observing the exposure indicators in the viewfinder or on the screen; small rotations produce smooth changes in density. When using very long exposures or strong attenuation, use a tripod to avoid camera shake and review histogram or exposure preview to confirm correct exposure. Remove or cover the filter when not needed to prevent additional reflections or vignetting on wide-angle lenses.
Usage recommendations
For best results, combine the filter with a tripod and remote release when creating long exposures. Verify that the chosen attenuation does not introduce color cast by checking white balance in-camera or in RAW processing. On wide-angle lenses, watch for potential vignetting at maximum density and adjust composition or reduce density if necessary.

## FAQ

### How much does the K&F ND Adjustable Filter ND3–ND1000 37 mm cost, and is it available for purchase?

The price is 45.49 € (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 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/11878401/67295840_large.webp