# Filter set K&F Concept 2-in-1: Black Diffusion 1/4 and 1/8 for 77mm lenses

**URL:** https://aio.lv/en/product--kf-sb7883--12113289
**Data updated:** 2026-03-20 10:05 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7883
**EAN:** 5904647817371
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7883--12113289

## 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 2-in-1 filter set includes two Black Diffusion filters (strengths 1/4 and 1/8) designed for 77mm lens threads. These diffusion filters soften highlights, reduce contrast and produce a subtle glow or bloom effect useful for portrait, fashion and cinematic photography. Suited for photographers seeking controlled diffusion without altering color balance.

## Long description

K&F Concept 2-in-1: Black Diffusion 1/4 and 1/8 for 77mm lenses is a pair of threaded optical filters designed to provide controlled softening of highlights and a subtle glow around bright areas while preserving overall color balance. Each filter screws onto standard 77mm lens threads and offers two diffusion strengths—one quarter and one eighth—so photographers can choose between a more pronounced bloom or a milder softening effect without changing exposure settings or color rendering.
Advantages
The two-filter set delivers flexible control over highlight bloom and contrast reduction in-camera, enabling portrait and fashion photographers to achieve flattering skin rendering and smoother transitions between light and shadow. These filters reduce the need for heavy post-processing to create soft-focus effects, while maintaining sharpness in midtones and preserving color fidelity. The threaded 77mm design ensures compatibility with a wide range of lenses and straightforward attachment.
Suitable for
Portrait photography to soften skin highlights and create a gentle glow
Fashion shoots where controlled diffusion enhances fabric texture and mood
Cinematic and video work requiring subtle bloom without color shift
Outdoor and studio setups where reduced contrast improves subject separation
Key specifications
Thread size: 77 mm compatible screw-in mount
Filter types: Black Diffusion, two strengths (1/4 and 1/8)
Effect: Softening of highlights, slight contrast reduction, bloom/glow around bright areas
Color impact: Minimal — designed to preserve original color balance
Construction: Optical-grade filter glass with metal threaded ring for secure attachment
How to use
Screw the desired filter onto the front thread of a 77mm lens until it seats snugly. Choose the 1/4 filter for stronger diffusion and a more pronounced glow, or the 1/8 filter for a subtler softening effect. Compose and expose normally; the filters are intended to be used without additional in-camera color correction. For video, test motion rendering at working frame rates to ensure the diffusion behaves as expected. When stacking filters or using lens hoods, check for vignetting on wide-angle lenses.
Usage recommendations
For portrait work, place key light slightly off-axis to produce a pleasing wrap and make subtle adjustments to distance between subject and light to control the bloom. In mixed-light environments, verify white balance after mounting the filter to confirm color neutrality. Clean the filter surfaces with a microfiber cloth and appropriate lens cleaning fluid to maintain optical performance.

## FAQ

### How much does the K&F Concept 2-in-1 Black Diffusion filters for 77mm cost, and is it available for purchase?

The price is 46.99 € (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/12113289/67648760_large.webp