# Neutral Density Variable Filter K&F 82mm Fader Gray ND2–ND400 adjustable

**URL:** https://aio.lv/en/product--kf-sb7799--11878821
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7799
**EAN:** 5904647816848
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 36.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7799--11878821

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Variable neutral density (ND) filter by K&F for 82mm lens threads, model SB7799. Adjustable from ND2 to ND400, it reduces light entering the lens to allow longer exposures, wider apertures or motion blur control. Designed for landscape, long-exposure, and videography use where variable light attenuation and tonal neutrality are required.

## Long description

The K&F 82mm Fader Gray ND2–ND400 variable neutral density filter reduces light entering the lens across a wide adjustable range to enable longer exposures, wider apertures and controlled motion blur. Designed for 82mm thread lenses, this variable ND filter provides continuous attenuation from approximately 1 to 9 stops, allowing photographers and videographers to fine-tune exposure without changing filters. The filter preserves tonal neutrality for natural-looking color and contrast in landscape, long-exposure, and video work.
Advantages
The Fader Gray variable ND offers smooth, stepless light reduction in a single compact glass element that eliminates the need to carry multiple fixed-strength filters. Its adjustable range covers low to very strong attenuation needs, so you can shift from subtle exposure control to dramatic long exposures quickly. The optical surface is designed to maintain color fidelity and contrast while minimizing vignetting on full-frame and crop-sensor systems when used correctly. Built for practical field use, the filter mounts on lenses with 82mm threads and allows rapid changes to exposure settings without interrupting a shoot.
Suitable for
 Landscape photography requiring slower shutter speeds
 Long-exposure scenes such as waterfalls, rivers, and clouds
 Video production to control exposure and motion blur
 Portraits and shallow-depth-of-field work in bright light
 On-location shooting where carrying multiple filters is impractical
Key specifications
 Filter type: Variable neutral density (variable ND)
 Thread diameter: 82 mm
 Light reduction range: approximately ND2 to ND400 (about 1 to 9 stops)
 Optical construction: multi-element coated glass designed for neutral color transmission
 Mount: screw-in metal frame compatible with 82mm lens threads
How to use
Screw the filter onto a lens with an 82mm thread until it is secure but not overtightened. Rotate the front element to set the desired density while observing exposure changes through the camera or using a light meter. For long exposures, set a low ISO and a small aperture as required, then rotate the filter to increase attenuation until the correct shutter speed is reached. When using wide-angle lenses, check for vignetting and adjust framing or reduce density if needed. For video, make gradual adjustments to avoid abrupt exposure shifts in the recording.
Usage recommendations
Avoid stacking multiple filters with the variable ND to prevent excessive vignetting and uneven exposure. When using the highest attenuation settings, watch for cross-polarization effects or X-patterns; slightly rotating the filter or using lower density may reduce this. Clean the filter surfaces with a soft microfiber cloth and appropriate lens cleaning solution, and store it in a protective case when not in use.

## FAQ

### How much does the K&F 82mm Variable ND Filter Fader ND2–ND400 cost, and is it available for purchase?

The price is 44.49 € (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 16.07.2026 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/11878821/67296415_large.webp