# Adjustable Neutral Density Filter K&F Concept KF01.1401 58mm ND2–ND400 variable

**URL:** https://aio.lv/en/product--kf-concept-kf011401--10765168
**Data updated:** 2025-12-30 10:06 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F Concept
**Manufacturer code:** KF01.1401
**EAN:** 6936069236897
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-concept-kf011401--10765168

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Adjustable neutral density (ND) filter K&F Concept KF01.1401 with 58 mm thread reduces light transmission in a range from ND2 to ND400. Designed for stills and video, it allows longer exposures, motion blur, and wider apertures in bright conditions. Screw-in 58mm mount fits compatible lenses and provides precise control over exposure without changing shutter or ISO.

## Long description

Adjustable Neutral Density Filter K&F Concept KF01.1401 58mm ND2–ND400 reduces light transmission to enable longer exposures, motion blur and wider apertures in bright conditions. This 58 mm screw-in filter is suitable for stills and video and provides precise control over exposure without changing shutter speed or ISO.
Advantages
The K&F Concept KV34 Slim Filter offers a continuously variable attenuation from ND2 up to ND400, giving flexibility for different lighting situations. Constructed from optical glass with a double-sided multi-layer blue coating, it preserves image quality while providing water-resistant surface properties. Its slim 7.3 mm frame and super-light CNC aluminium ring minimize vignetting and reduce extra weight on the lens or tripod balance.
Suitable for
Landscape photography requiring long exposures
Creating water motion blur and silky waterfall effects
Video work in bright light where controlled exposure is needed
Portraits or scenes needing wider apertures in strong sunlight
Key specifications
Manufacturer: K&F Concept
Model / MPN: KF01.1401
Thread / Diameter: 58 mm
Density range: ND2 to ND400 (variable)
Glass type: Optical glass with double-sided multi-layer blue coating
Frame thickness: 7.3 mm
How to use
Screw the 58 mm filter onto a lens with a matching thread and rotate the outer ring to adjust the neutral density level between ND2 and ND400. Compose and meter the scene, then set shutter speed and aperture according to the desired exposure and creative effect. For long exposures use a tripod and remote release or self-timer to avoid camera shake. When using wide apertures check for any vignetting on wide-angle lenses and reduce density if needed.
Usage recommendations
Store the filter in a protective pouch when not in use and clean only with a blower, soft brush or microfiber cloth and appropriate lens fluid. Avoid cross-polarizing or stacking multiple variable ND filters to reduce the risk of uneven exposure or X-pattern artifacts at high densities.

## FAQ

### How much does the ND Filter K&F Concept KF01.1401 58mm cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 10.07.2026 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 Concept 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 Concept 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/10765168/59997719_large.webp