# Neutral Density Variable Filter K&F 72mm ND2–ND400 Adjustable (Gray) KF01.1404

**URL:** https://aio.lv/en/product--kf-sb7797--11878565
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7797
**EAN:** 5904647816824
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 35.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7797--11878565

## 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 72 mm thread and adjustable density range ND2 to ND400. The gray ND filter lets photographers control exposure and reduce light intake for long exposures, wider apertures, or motion blur control. Suited for landscape, long-exposure, and videography applications where variable attenuation is required.

## Long description

The Neutral Density Variable Filter K&F 72mm ND2–ND400 Adjustable (Gray) KF01.1404 is a rotating variable ND filter designed for 72 mm lens threads. It provides continuous light attenuation from approximately 1 stop (ND2) up to around 9 stops (ND400), allowing precise control over exposure without changing aperture or shutter speed settings. The gray glass reduces incoming light while preserving color balance, making it suitable for still photography and video where variable density is required.
Advantages
This K&F variable ND filter offers stepless density adjustment, enabling flexible control of exposure and depth of field in-camera. The neutral gray coating aims to maintain color fidelity across varying densities. Constructed to fit 72 mm threads, the filter supports quick on-lens mounting and rotation for smooth transition between stops. It eliminates the need to carry multiple fixed ND filters and simplifies switching between different light conditions.
Suitable for
Landscape photography requiring longer exposures to smooth water and cloud movement
Portraits where wider apertures are needed in bright light
Video and filmmaking to control shutter speed and achieve cinematic motion blur
Urban and architectural long-exposure images to reduce moving elements
Key specifications
Filter type: Variable neutral density (rotating)
Thread size: 72 mm
Density range: ND2 to ND400 (approx. 1 to 9 stops of light reduction)
Optical effect: Neutral gray attenuation to reduce light intake while preserving color balance
Mount: Screw-on metal frame compatible with lenses that have 72 mm filter threads
How to use
Screw the filter onto a lens with a 72 mm thread until secure, avoiding overtightening. Rotate the front element to adjust the density between ND2 and ND400 while observing the viewfinder or live view; stop when the desired exposure or motion effect is achieved. Combine with a tripod for long exposures to prevent camera shake. When shooting video, set shutter speed and aperture first, then use the filter to fine-tune light levels and motion rendition.
Usage recommendations
When using the variable ND filter, check for potential cross-polarization effects (X-pattern) at maximum density on wide-angle lenses; reduce rotation slightly if visible. Store the filter in a protective case when not in use and clean optical surfaces with a microfiber cloth and appropriate lens cleaning solution to maintain image quality.

## FAQ

### How much does the K&F 72mm Variable ND Filter ND2–ND400 KF01.1404 cost, and is it available for purchase?

The price is 42.49 € (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/11878565/67296059_large.webp