# K&F Filter Set 4-in-1 55mm — Nano-K, UV, CPL, ND4

**URL:** https://aio.lv/en/product--kf-sb7489--10838855
**Data updated:** 2026-03-07 18:06 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7489
**EAN:** 5904647814882
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7489--10838855

## 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

K&F 4-in-1 filter set for 55 mm lenses includes Nano-K protective/coating filter, UV filter, circular polarizer (CPL) and ND4 neutral density filter. Designed to fit lenses with 55 mm thread, the set provides reflection and glare reduction, UV protection, polarization control for improved contrast and color, and 2-stop light reduction for exposure control. Suitable for landscape, travel and everyday photography.

## Long description

The K&F Filter Set 4-in-1 55mm — Nano-K, UV, CPL, ND4 is a compact filter kit designed for lenses with a 55 mm thread. The set contains four commonly used photographic filters: a Nano-K protective/coating filter, a UV filter to reduce ultraviolet haze, a circular polarizer (CPL) for managing reflections and enhancing color saturation, and an ND4 neutral density filter that reduces light by approximately two stops. These filters are intended for photographers seeking basic protection, improved contrast, reduced glare, and modest exposure control without changing lenses during shoots.
Advantages
The Nano-K protective/coating filter provides surface protection while maintaining image clarity; the UV element helps minimise atmospheric haze in outdoor images. The CPL filter reduces unwanted reflections from non-metallic surfaces and increases color saturation and contrast in skies and foliage. The ND4 neutral density filter enables a two-stop reduction in light, useful for controlling exposure in brighter conditions or for achieving slightly longer shutter speeds. The set covers common photographic needs in a small, easy-to-carry package compatible with any lens that uses a 55 mm thread.
Suitable for
 Landscape photography — improving sky contrast and reducing haze
 Travel and everyday photography — lens protection and glare reduction
 Street photography — quick control of reflections and color saturation
 Outdoor portraits — reducing specular highlights and enhancing background tones
 Long-exposure basics — mild light reduction for shutter speed control
Key specifications
 Filter thread size: 55 mm
 Filter types included: Nano-K protective/coating, UV, Circular Polarizer (CPL), ND4 (approx. 2-stop density)
 Coating: Nano coating on protective filter to reduce reflections and resist smudges
 Polarizer: Circular type compatible with modern autofocus systems
 Light reduction: ND4 ≈ 2 stops
 Construction: multi-element optical glass with metal or metal-alloy filter rings (standard slim profile)
How to use
Screw the selected filter onto the front thread of a lens with a 55 mm filter mount, ensuring a snug but not overtightened fit. Use the Nano-K protective/coating filter when you want to keep the front element safe from dust, scratches and fingerprints while maintaining image quality. Fit the UV filter to reduce ultraviolet haze in bright outdoor conditions. Rotate the CPL filter while looking through the viewfinder or live view to find the optimal angle for reducing reflections and increasing saturation. Attach the ND4 filter when you need roughly two stops of light reduction to avoid overexposure or to slightly lengthen shutter speeds; combine with correct exposure adjustments as required.
Usage recommendations
When using the CPL, check focus and exposure after rotating the filter because polarization can change light distribution. For long-term storage, keep filters in a protective pouch or case to preserve coatings and threads. Clean filters with a soft microfiber cloth and appropriate lens cleaner; avoid abrasive materials. Remove metal caps or stacked filters carefully to prevent cross-threading.

## FAQ

### How much does the K&F 55mm Filter Set 4-in-1 (Nano-K, UV, CPL, ND4) cost, and is it available for purchase?

The price is 41.49 € (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/10838855/60184938_large.webp