# K&F Black Diffusion Filter Set 2-in-1 for 49mm — Black Diffusion 1/4 and 1/8

**URL:** https://aio.lv/en/product--kf-sb7877--11385886
**Data updated:** 2026-03-07 20:01 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7877
**EAN:** 5904647817326
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 28.09 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7877--11385886

## 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 2-in-1 Black Diffusion filter set for 49mm lenses includes two diffusion strengths (1/4 and 1/8). Designed to reduce contrast and soften highlights while preserving overall exposure, these screw-on filters mount on 49mm thread lenses. Suitable for portrait, fashion and cinematic video work to create gentle glow and smooth skin tones without altering focal length.

## Long description

The K&F Black Diffusion Filter Set 2-in-1 for 49mm offers two diffusion strengths (1/4 and 1/8) in screw-on filters for lenses with a 49mm thread. These black diffusion filters reduce mid-to-high contrast and soften highlights while maintaining overall exposure and colour balance. The set is designed for portrait, fashion and cinematic video shoots where a subtle glow and smoother skin textures are required without changing focal length or introducing colour casts.
Advantages
The two-step diffusion design provides flexible control over the degree of glow and softness, allowing quick switching between a stronger (1/4) and a milder (1/8) effect. As screw-on filters they are compact and easy to attach, offering stable optical alignment with the lens and compatibility with most prime and zoom lenses that accept 49mm filter threads. The filters preserve exposure and colour fidelity while reducing contrast and preventing harsh specular highlights from clipping.
Suitable for
 Portrait photography to smooth skin tones and reduce blemish visibility
 Fashion shoots where a gentle, flattering glow is desired
 Cinematic and narrative video production for soft highlight transitions
 Close-up and beauty photography to create a filmic, diffused look
Key specifications
 Mount type: 49mm screw-on filter thread
 Diffusion strengths: 1/4 (stronger) and 1/8 (milder)
 Effect: black diffusion to reduce contrast and soften highlights
 Optical influence: preserves exposure and maintains colour neutrality
 Form factor: slim circular filters suitable for stacking or single use
How to use
Screw the selected filter (1/4 for stronger diffusion or 1/8 for subtler effect) onto the front thread of a 49mm lens before composing and metering. Meter and evaluate highlights on camera or monitor; because the filters preserve exposure, typical exposure adjustments are minimal, but check skin tones and specular highlights on a test frame. For video, use the milder filter for medium shots and the stronger filter for close-ups to maintain detail while adding a soft glow. Remove or replace the filter as lighting or creative requirements change.
Usage recommendations
 Use the 1/8 filter when you want a natural softening without visible bloom, and the 1/4 filter when you need more pronounced diffusion for close-ups or stylised looks. Avoid stacking heavy diffusion with extreme contrast lighting; pair the filters with controlled lighting and reflective modifiers to achieve consistent skin tones and highlight roll-off.

## FAQ

### How much does the K&F Black Diffusion Filter Set 49mm — 1/4 & 1/8 cost, and is it available for purchase?

The price is 33.99 € (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 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/11385886/66019648_large.webp