# Camera polarizing filter K&F Concept KF01.1150 — 40.5 mm circular polarizer

**URL:** https://aio.lv/en/product--kf-concept-kf011150--5096869
**Data updated:** 2026-02-12 14:18 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F Concept
**Manufacturer code:** KF01.1150
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-concept-kf011150--5096869

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Circular polarizing filter K&F Concept KF01.1150 with a 40.5 mm thread size. Designed to reduce reflections, enhance color saturation and contrast, and improve clarity in outdoor and landscape photography. Fits lenses with 40.5 mm front threads and is operated by rotating the filter to adjust polarization. Useful for shooting skies, water surfaces and foliage.

## Long description

Circular polarizing filter K&F Concept KF01.1150 — 40.5 mm circular polarizer reduces unwanted reflections from non-metallic surfaces, improves color saturation and contrast, and helps achieve clearer images in outdoor and landscape photography. The filter attaches to lenses with a 40.5 mm front thread and is rotated to change the degree of polarization, allowing control over reflections on skies, water and foliage while preserving autofocus and exposure metering.
Advantages
The K&F Concept circular polarizer offers easy one-handed adjustment by rotating the outer ring to vary polarization strength. Its optical glass construction maintains image sharpness and minimizes color cast. The slim metal mount reduces the risk of vignetting on wide-angle lenses while providing a secure threaded connection to lenses with a 40.5 mm front thread. The filter is suitable for maintaining automatic lens functions and for use in a range of outdoor lighting conditions.
Suitable for
Landscape photography to deepen blue skies and enhance cloud definition
Reducing reflections on water, glass and wet foliage
Outdoor portrait and travel photography where improved color saturation is needed
Use with lenses that have a 40.5 mm front thread
Key specifications
Filter type: circular polarizer (CPL)
Thread size: 40.5 mm
Mount material: slim metal ring designed to limit vignetting
Optical element: multi-coated glass to reduce flare and reflections
Operation: rotatable outer ring for adjustable polarization
How to use
Screw the filter onto the lens front thread until it is secure but not overtightened. Compose the shot and then rotate the outer ring while observing through the viewfinder or live view to find the desired reduction of reflections and saturation level. For maximum effect when shooting skies, position the camera with the sun at approximately 90 degrees to the lens axis. Keep the filter clean and store it in a protective case when not in use to preserve coatings and mechanical smoothness.
Usage recommendations
Use the circular polarizing filter when shooting scenes with reflective surfaces or when you need richer colors and improved contrast. Avoid using strong polarization with ultra-wide lenses at close focal lengths if noticeable uneven polarization appears across the frame.

## FAQ

### How much does the K&F Concept KF01.1150 polarizing filter — 40.5 mm cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Thursday 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: Cash payment, 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 Concept 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 Concept 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/5096869/40964311_large.webp