# Variable neutral density camera filter K&F Concept Nano-X 37 mm, adjustable ND

**URL:** https://aio.lv/en/product--kf-kf011443--11879156
**Data updated:** 2026-03-09 20:45 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** KF01.1443
**EAN:** 6936069239010
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-kf011443--11879156

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

K&F Concept Nano-X variable neutral density (ND) filter, 37 mm thread size. Adjustable light reduction for long exposures and aperture control in bright conditions. Single-pack black metal filter designed for stills and video to control exposure, enable slower shutter speeds, and achieve motion blur or shallow depth-of-field effects with compatible lenses.

## Long description

The K&F Concept Nano-X 37 mm variable neutral density (ND) filter provides adjustable light reduction for stills and video, allowing photographers and videographers to control exposure, extend shutter times and achieve motion blur or a shallower depth of field with compatible lenses. This single-pack black metal filter fits lenses with a 37 mm thread and offers a compact solution for managing bright conditions without changing aperture or ISO drastically.
Advantages
The Nano-X filter features a double-sided multilayer green coating that reduces reflections from both the lens and the filter surface, preserving image clarity. It is adjustable between approximately 3 and 7 stops, enabling flexible control over light transmission while minimizing the common "X" cross pattern on wide-angle lenses. Multi-layer nanometer coatings provide hydrophobic and scratch-resistant properties, helping the filter repel water and dirt while resisting abrasion in demanding environments.
Suitable for
Landscape photography requiring slower shutter speeds to smooth water or clouds
Portraits where a shallow depth of field is desired in bright light
Video work that needs consistent exposure control and controlled motion blur
Travel and street photography when compact, screw-in filters are preferred
Key specifications
Filter type: Variable neutral density (adjustable ND)
Light reduction range: approximately 3 to 7 stops
Thread size: 37 mm (front screw-in mount)
Construction: metal filter frame (black)
Coating: double-sided multilayer green coating with hydrophobic and scratch-resistant nanocoating
Anti-glare coating and multi-layer polishing for improved optical performance
Designed front diameter larger than back diameter to reduce vignetting on wide-angle lenses
How to use
Screw the filter onto a compatible 37 mm lens thread until it is secure but not overtightened. Rotate the adjustable ring to change the density between the approximate 3–7 stop range while observing the viewfinder or live view to achieve the desired exposure and creative effect. When using wide-angle lenses, check the frame corners for vignetting and adjust composition or density as needed. Clean the filter surface with a soft microfiber cloth and appropriate optical cleaner to maintain image quality.
Usage recommendations
For long exposures, use a stable tripod and remote release or camera timer to avoid camera shake. Start with lower density settings and gradually increase until you reach the required shutter speed or depth-of-field effect. Avoid stacking additional filters to reduce risk of vignetting and reflections.

## Specifications

| Feature | Value |
|---|---|
| Filter size | 37 mm |
| Product colour | Black |
| Package type | Box |
| Waterproof | Yes |
| Filter type | Variable neutral density camera filter |
| Scratch-resistant | Yes |
| Quantity per pack | 1 pc(s) |
| Anti-glare (AG) coating | Yes |
| Camera lens filter type | ND128, ND16, ND32, ND64, ND8 |
| Hydrophobic coating | Yes |
| Number of coating layers | 28 |
| Stop reduction range | 3 - 7 |

## FAQ

### How much does the K&F Concept Nano-X variable ND filter 37 mm cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 07.07.2026 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/11879156/67427111_large.webp