# Circular Polarizing Filter K&F Concept Nano-C HMC CPL 49 mm

**URL:** https://aio.lv/en/product--kf-kf4307--11878962
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** KF4307
**EAN:** 6936069208887
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 16.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 14.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-kf4307--11878962

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Circular polarizing (CPL) filter K&F Concept Nano-C HMC in 49 mm size. Designed to reduce reflections and glare from non-metallic surfaces, enhance color saturation and contrast, and improve sky rendering in outdoor photography. Screw-mount filter compatible with lenses that accept 49 mm threads; useful for landscape, travel, and product photography to control reflections and deepen colors.

## Long description

The Circular Polarizing Filter K&F Concept Nano-C HMC in 49 mm is a screw-mount lens filter designed to control reflections and manage polarized light in photography. It reduces glare from non-metallic surfaces such as water and glass, increases color saturation and contrast, and enhances sky rendering for clearer blue tones. The compact 49 mm size fits lenses with 49 mm filter threads and is suitable for outdoor, travel, landscape, and product photography where control over reflections and color fidelity is required.
Advantages
This CPL filter uses a multi-coated optical surface to minimize unwanted reflections and ghosting while maintaining image sharpness. The filter’s circular polarizing design allows autofocus and exposure metering to function normally on modern cameras. Its slim, threaded metal frame provides reliable attachment to compatible lenses and reduces vignetting on wide-angle optics when used with lenses that accept 49 mm filters.
Suitable for
Landscape photography to deepen blue skies and increase cloud contrast
Travel and outdoor photography to reduce glare from water, leaves, and wet surfaces
Product and still-life photography to control reflections on glass and glossy materials
Architectural and street photography when managing window or pavement reflections
Key specifications
Filter type: Circular polarizer (CPL)
Mount: Screw-in filter thread, 49 mm diameter
Optical coating: Multi-coated surfaces to reduce reflections and flare
Frame material: Metal slim profile to limit vignetting on wide-angle lenses
Function: Reduces polarized glare, increases color saturation and contrast
How to use
Attach the filter by screwing it into the front filter thread of a lens that accepts 49 mm filters. Rotate the outer ring while observing the viewfinder or live view until the desired reduction in reflections or change in sky contrast is achieved. Check exposure and white balance after applying the filter as polarization can alter perceived light intensity; adjust settings or use exposure compensation if necessary. When not in use, store the filter in its protective case to avoid scratches and dust.
Usage recommendations
For best results, use the CPL filter at a 90-degree angle to the sun to maximize polarization effects. Avoid stacking multiple thick filters on wide-angle lenses to prevent vignetting. Clean the glass with a lens cloth and blower before mounting to maintain image clarity.

## FAQ

### How much does the Circular Polarizer K&F Concept Nano-C HMC CPL 49 mm cost, and is it available for purchase?

The price is 16.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 23.07.2026 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/11878962/67296655_large.webp