# Circular Polarizing Filter K&F 77mm CPL III (77 mm) for DSLR and Mirrorless Cameras

**URL:** https://aio.lv/en/product--kf-sb9850--11878960
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB9850
**EAN:** 5904647827813
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 76.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 63.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb9850--11878960

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Circular polarizing (CPL) filter by K&F, 77 mm thread size, designed to reduce reflections and enhance color saturation for DSLR and mirrorless cameras. The CPL III variant provides adjustable polarization to control glare from non-metallic surfaces and deepen skies. Useful for landscape, outdoor, and architectural photography where contrast and color fidelity matter.

## Long description

The Circular Polarizing Filter K&F 77mm CPL III is a screw-in camera lens accessory designed for DSLR and mirrorless cameras with a 77 mm filter thread. It reduces reflections from non-metallic surfaces, enhances color saturation and contrast, and allows photographers to control glare and deepen blue tones in skies. The CPL III version provides adjustable polarization by rotating the front element, enabling fine tuning of light transmission and the visual effect without changing exposure settings significantly.
Advantages
This 77 mm circular polarizer improves color fidelity and contrast while minimizing unwanted reflections on water, glass and foliage. The filter’s rotatable construction permits precise control of polarization strength, and the slim profile helps avoid vignetting on wide-angle lenses. Optical glass with multi-coating reduces flare and ghosting, maintaining image clarity and sharpness across the frame.
Suitable for
 Landscape photography to deepen skies and increase cloud definition
 Outdoor and travel photography to reduce reflections on water and foliage
 Architectural and real estate photography to minimize reflections on windows and glass surfaces
 Product and still life shoots where controlled reflections improve color accuracy
Key specifications
 Filter type: Circular polarizer (CPL)
 Thread size: 77 mm
 Compatibility: DSLR and mirrorless camera lenses with 77 mm filter thread
 Mount: Screw-in (male thread)
 Design: Rotating polarizing element for adjustable polarization
 Optical construction: Multi-coated glass to reduce reflections and flare
 Profile: Slim/low-profile to help prevent vignetting on wide-angle lenses
How to use
Attach the filter by carefully screwing it onto the front of a lens with a 77 mm thread until it seats securely without overtightening. Rotate the outer ring while viewing the scene through the viewfinder or live view to adjust the intensity of the polarization effect; the desired reduction in glare and increase in color saturation will appear as you turn the filter. Check for any vignetting at wide focal lengths and, if necessary, use a slim filter holder or step-up ring. Clean the filter surface with a lens cloth before and after use to maintain optical performance.
Usage recommendations
For best results, use the CPL filter at 90 degrees to the sun to maximize sky darkening and contrast. Avoid stacking multiple dense filters that may introduce vignetting or affect exposure metering accuracy. Store the filter in a protective case when not in use and handle by the outer ring to keep the glass surface free of fingerprints.

## FAQ

### How much does the K&F 77mm Circular Polarizing Filter CPL III cost, and is it available for purchase?

The price is 76.99 € (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 15.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can K&F 77mm Circular Polarizing Filter CPL III be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/11878960/67296652_large.webp