# Polarizing Filter CPL K&F HD MC Slim C 37mm – circular polarizer for lenses, multi-coated slim 37 mm

**URL:** https://aio.lv/en/product--kf-sb6380--4825116
**Data updated:** 2026-03-07 15:00 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB6380
**EAN:** 6936069266153
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb6380--4825116

## 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

Circular polarizing (CPL) filter K&F HD MC Slim C in 37 mm size designed to reduce reflections and enhance color saturation in photography. Multi-coated glass minimizes flare and ghosting while the slim metal frame reduces vignetting on wide-angle lenses. Fits lenses with 37 mm filter thread and is intended for landscape, outdoor and product photography where glare control and improved contrast are needed.

## Long description

The K&F HD MC Slim C 37mm circular polarizing filter (CPL) is designed to reduce unwanted reflections from non-metallic surfaces and to increase color saturation and contrast in bright outdoor and studio conditions. The filter uses multi-coated glass to minimize flare and ghosting while the slim metal frame reduces the risk of vignetting on wide-angle lenses. This 37 mm size screws onto lenses with a 37 mm filter thread and provides adjustable polarization by rotating the outer ring.
Advantages
The multi-coated glass improves light transmission and reduces internal reflections, helping to preserve image clarity and color fidelity. The slim profile of the metal frame is engineered to limit vignetting on wide-angle lenses while remaining durable and lightweight. The circular polarizer design allows for continuous adjustment to control the degree of polarization, making it practical for different lighting conditions. The filter is compatible with lenses that have a 37 mm filter thread, providing a straightforward mechanical fit.
Suitable for
Landscape photography to deepen skies and enhance cloud contrast
Outdoor and travel photography for reducing glare from water and foliage
Product and still-life photography to control surface reflections on glass and plastic
Architectural details and window shots where reflection suppression is needed
Key specifications
Filter type: Circular polarizer (CPL)
Size: 37 mm screw-in thread
Optical construction: Multi-coated glass to reduce flare and ghosting
Frame: Slim metal frame to minimize vignetting on wide-angle lenses
Adjustment: Rotating outer ring for variable polarization control
How to use
Screw the filter onto the front of a lens with a 37 mm filter thread until it is secure but not overtightened. Point the camera at the scene and rotate the outer ring of the CPL filter while observing through the viewfinder or on the camera LCD; the effect on reflections and sky saturation will change as you rotate. Use the filter to reduce reflections from water, glass, and wet surfaces, or to darken blue skies and increase contrast between clouds and sky. Remove the filter when polarization is not required or when using certain wide-angle compositions that still show residual vignetting.
Usage recommendations
For best results, combine the CPL filter with lenses that match the 37 mm thread size and check exposure after mounting the filter, as the polarization effect can slightly alter apparent brightness. Store the filter in a protective case when not in use and clean the multi-coated glass with a soft microfiber cloth and proper lens cleaning fluid to maintain image quality.

## FAQ

### How much does the K&F CPL HD MC Slim C 37mm polarizing filter cost, and is it available for purchase?

The price is 20.99 € (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/4825116/30330833_large.webp