# K&F 4-in-1 Filter Set for GoPro Hero 4K — Neutral Density ND4 ND8 ND16 and Polarizer PL, Gray

**URL:** https://aio.lv/en/product--kf-sb9624--11849031
**Data updated:** 2026-03-09 17:24 (EET)
**Category:** Action Camera Accessories
**Manufacturer:** K&F
**Manufacturer code:** SB9624
**EAN:** 6942052548359
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 40.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb9624--11849031

## 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 | 1.89 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

K&F 4-in-1 gray filter set designed for GoPro Hero 4K includes three neutral density filters (ND4, ND8, ND16) and a polarizing (PL) filter. The ND filters reduce light intake for smoother shutter control and motion blur management in bright conditions; the PL filter reduces reflections and increases color saturation. Suitable for action and outdoor video, surfing, skiing and other bright-light shooting situations.

## Long description

The K&F 4-in-1 gray filter set for GoPro Hero 4K includes three neutral density filters (ND4, ND8, ND16) and a circular polarizer (PL). Designed to attach to compatible GoPro housings or filter mounts, this compact set reduces incoming light and manages reflections to help achieve controlled exposure and improved color rendering in bright outdoor conditions. The ND filters lower light intensity to enable slower shutter speeds for natural motion blur and reduced overexposure, while the PL filter suppresses surface reflections and enhances contrast and saturation for clearer action footage.
Advantages
The set combines multiple optical functions in a single, lightweight kit suitable for action cameras, minimizing the need to swap separate filters during activity. Neutral density filters provide graduated light reduction for different brightness levels, allowing more precise shutter-speed control. The polarizer reduces glare on water, snow and other reflective surfaces and can increase color depth without altering white balance. Constructed to fit common GoPro filter mounts, the filters are low-profile and designed for easy installation and secure fit during fast movement.
Suitable for
Action sports filming — surfing, skiing, mountain biking
Bright daylight outdoor videography and time-lapse sequences
Water and snow environments where reflections are common
Scenes requiring controlled motion blur and reduced overexposure
Key specifications
Filter types: Neutral Density (ND4, ND8, ND16) and Polarizer (PL)
Purpose: Light reduction (ND) and reflection suppression/color enhancement (PL)
Compatibility: Designed for GoPro Hero 4K with compatible filter mount or housing
Form factor: Compact, low-profile round filters suitable for action camera lenses
How to use
Select the ND filter that matches current light conditions: ND4 for mild reduction, ND8 for moderate brightness, and ND16 for very bright environments. Attach the chosen filter or the polarizer to the camera's filter mount before recording. When using the polarizer, rotate it while monitoring the image to find the position that best reduces reflections and increases saturation. For motion blur effects, set the camera to manual shutter or use a shutter-smoothing setting if available, and adjust exposure accordingly after fitting the ND filter.
Usage recommendations
Inspect and clean filter optics before use to avoid spots or flare. Store filters in a protective case when not in use and avoid overtightening mounts to prevent damage. When shooting fast-moving subjects, verify secure attachment and periodically check the filter during extended sessions.

## FAQ

### How much does the K&F 4-in-1 Filter Set for GoPro Hero 4K cost, and is it available for purchase?

The price is 49.49 € (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 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 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/11849031/67247729_large.webp