# Neutral Density Variable Filter K&F KF01.1443 37mm ND8–ND128 adjustable (gray)

**URL:** https://aio.lv/en/product--kf-sb7455--11878937
**Data updated:** 2026-03-09 20:44 (EET)
**Category:** Camera Filters
**Manufacturer:** K&F
**Manufacturer code:** SB7455
**EAN:** 5904647814578
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 46.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb7455--11878937

## 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

Variable neutral density (ND) filter K&F KF01.1443 in 37 mm thread size offering adjustable light reduction from ND8 to ND128. Constructed for mounting on compatible 37 mm lenses, the gray ND filter enables longer exposures and wider apertures in bright conditions to control motion blur and depth of field. Useful for landscape, long-exposure, and videography applications where variable attenuation is required.

## Long description

The Neutral Density Variable Filter K&F KF01.1443 37mm ND8–ND128 adjustable (gray) is a screw-on optical accessory designed for lenses with a 37 mm filter thread. It provides continuously variable light attenuation between approximately 3 and 7 stops (ND8 to ND128), allowing photographers and videographers to extend exposure times or open apertures in bright conditions. The gray (neutral) tint preserves color balance while reducing incoming light, making it suitable for controlled motion blur, shallow depth of field in daylight, and smoother video exposure control.
Advantages
The filter offers a wide adjustment range in a compact 37 mm form factor, enabling flexible control over exposure without changing individual fixed-density filters. Its neutral-density design minimizes color cast so that white balance adjustments remain predictable. The screw-in mounting ensures a secure fit on compatible lenses and a low-profile build helps avoid vignetting on small-format optics. Continuous rotation allows fine incremental changes for precise exposure and creative effects.
Suitable for
Landscape photography requiring long exposures to soften water and cloud motion
Portraits and outdoor shallow-depth-of-field shots in bright light
Videography where stable shutter control and smooth exposure transitions are needed
Architectural and street scenes that benefit from motion blur or reduced highlights
Key specifications
Filter type: Variable neutral density (ND) — adjustable from ND8 to ND128
Thread size: 37 mm screw-in
Color: Gray (neutral density to preserve color balance)
Light reduction range: approximately 3 to 7 stops
Mounting: Screw-on with continuous rotation for variable attenuation
How to use
Screw the K&F variable ND filter onto the front thread of a compatible 37 mm lens until it is snug but not overtightened. Set your camera exposure settings (shutter speed, aperture, ISO) for the desired base exposure, then rotate the outer ring of the filter to increase or decrease light attenuation until the target exposure or creative effect is achieved. For long-exposure landscape shots, use a tripod and live view or histogram to confirm correct exposure. When shooting video, rotate slowly to avoid abrupt changes in brightness. Remove the filter when it is no longer required to restore full light transmission.
Usage recommendations
To reduce risk of color shifts or cross-polarization effects, check results at multiple settings and adjust white balance as needed. Use a lens hood to minimize stray light on the filter surface and carry the filter in a protective case to avoid scratches. For extreme attenuation settings, compose and focus before attaching the filter or use live view/focus assist to maintain sharpness.

## FAQ

### How much does the K&F Variable ND Filter 37mm ND8–ND128 cost, and is it available for purchase?

The price is 56.49 € (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/11878937/67296612_large.webp