# Hybrid Camera Filter K&F Concept 2-in-1 CPL + Solid Neutral Density ND2–ND32 for 37 mm

**URL:** https://aio.lv/en/product--kf-sb9038--11878780
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB9038
**EAN:** 6942052537759
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 32.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb9038--11878780

## 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 Concept hybrid 2-in-1 filter combines a circular polarizer (CPL) with a solid neutral density range ND2–ND32 for 37 mm lenses. The CPL reduces reflections and enhances color saturation; the variable ND (ND2, ND4, ND8, ND16, ND32 steps) provides up to 5 stops of light reduction for longer exposures or wider apertures. Designed for landscape, long-exposure, and portrait photography where control of reflections and light is needed.

## Long description

The K&F Concept hybrid 2-in-1 CPL + Solid Neutral Density ND2–ND32 for 37 mm lenses combines a circular polarizer with a stepped solid neutral density filter. The circular polarizer reduces unwanted reflections from non-metallic surfaces and improves color saturation, while the solid ND steps (ND2, ND4, ND8, ND16, ND32) give up to 5 stops of light reduction to enable longer exposures or wider apertures on compatible 37 mm thread lenses. The compact, single-piece design reduces the need to carry separate CPL and ND filters while maintaining repeatable results for landscape, long-exposure and portrait shooting.
Advantages
This hybrid filter integrates polarizing and neutral density functions in one slim, screw-in unit, saving space on the lens and simplifying filter changes. The CPL element helps control glare and enhances color rendering without affecting exposure, and the stepped ND options provide predictable light reduction settings for consistent results. The 37 mm thread size is suitable for small prime and compact lenses, and the filter construction is designed for straightforward attachment and stable optical alignment.
Suitable for
 Landscape photography to deepen skies and reduce water surface reflections
 Long-exposure shots such as smoothing water or capturing motion with up to 5 stops reduction
 Portraits when managing highlights and controlling depth of field in bright conditions
 Travel and street photography where compact, multipurpose accessories are preferred
Key specifications
 Filter type: hybrid circular polarizer (CPL) combined with solid neutral density (ND2–ND32)
 ND steps: ND2, ND4, ND8, ND16, ND32 (up to 5 stops)
 Mount / size: screw-in 37 mm thread
 Optical effect: reflection reduction, color saturation enhancement, controlled light attenuation
 Form factor: single-piece screw-in filter suitable for compact lens fronts
How to use
Screw the filter onto a lens with a 37 mm filter thread until finger-tight to avoid cross-threading. Rotate the CPL element to the desired angle while observing reflections or color saturation through the viewfinder or on the camera screen; stop when reflections are minimized or colors reach the intended richness. Select the appropriate ND step by aligning the filter markings (ND2 to ND32) to achieve the required exposure reduction; use longer shutter speeds or wider apertures as needed. Verify exposure using the camera meter and adjust ISO, aperture or shutter speed to compensate for the selected ND setting.
Usage recommendations
Use a tripod for long-exposure shots enabled by ND16 and ND32 settings to avoid camera shake; when combining strong polarizing effect with high ND stop values, check for potential color cast and compensate in-camera or during RAW processing.

## FAQ

### How much does the K&F Concept Hybrid CPL + ND2–ND32 Filter for 37 mm cost, and is it available for purchase?

The price is 39.49 € (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/11878780/67296346_large.webp