# Variable Neutral Density Filter K&F Concept KF01.1405 Adjustable Nano-C HMC Fader ND2–400 77mm

**URL:** https://aio.lv/en/product--kf-concept-kf011405--10765256
**Data updated:** 2025-12-30 10:06 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F Concept
**Manufacturer code:** KF01.1405
**EAN:** 6936069236972
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-concept-kf011405--10765256

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Adjustable neutral density (ND) filter K&F Concept KF01.1405 with Nano-C HMC coatings, offering variable light attenuation from ND2 to ND400. Designed for 77 mm lens threads, it lets photographers control exposure and motion blur in bright conditions, enable longer exposures, and maintain aperture choice for depth-of-field control. Useful for landscape, architecture, and long-exposure photography.

## Long description

Variable Neutral Density Filter K&F Concept KF01.1405 (77 mm) is an adjustable ND filter that reduces light transmission from ND2 to ND400. Designed for 77 mm lens threads, it lets photographers control exposure in bright conditions to achieve longer shutter speeds, motion blur effects, or maintain desired aperture for depth-of-field control.
Advantages
The K&F Concept KF01.1405 uses optical glass with Nano-C HMC multi-layer coatings applied on both sides to improve image quality and provide water resistance. Its slim 7.3 mm frame and lightweight CNC-machined ring minimise vignetting and avoid upsetting tripod balance. The variable range from ND2 to ND400 offers flexible control over light reduction for a wide variety of shooting situations.
Suitable for
Landscape photography (long exposures of rivers, waterfalls, seascapes)
Architectural photography where controlled exposure is required
Long exposure and motion blur effects in bright daylight
Keeping aperture choice for shallow depth of field while reducing light
Key specifications
Manufacturer: K&F Concept
Model / MPN: KF01.1405
Filter type: Variable Neutral Density (Fader ND)
Optical thread size: 77 mm
Light reduction range: ND2 to ND400
Glass: Optical glass with Nano-C HMC multi-layer coating (double-sided)
Frame thickness: 7.3 mm (slim design)
How to use
Mount the filter on a lens with a 77 mm thread and rotate the outer ring to adjust attenuation between ND2 and ND400 until the desired exposure and motion effect are achieved. Use a tripod for long exposures to avoid camera shake and check exposure with live view or a light meter. When composing, verify focus before applying heavy ND settings, then use manual focus or focus lock to prevent hunting in low-light conditions created by strong attenuation.
Usage recommendations
Keep the filter and mount threads clean to avoid spots or streaks on long exposures. Store the filter in a protective pouch when not in use and avoid overtightening the ring to preserve the slim CNC-machined frame.

## FAQ

### How much does the K&F Concept KF01.1405 Adjustable ND2–400 Filter 77mm cost, and is it available for purchase?

The price is 31.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 09.07.2026 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/10765256/59998250_large.webp