# Step-down filter adapter B+W 58mm to 43mm 1102863 (58→43)

**URL:** https://aio.lv/en/product--bw-1102863--11830951
**Data updated:** 2026-03-09 14:41 (EET)
**Category:** Electronics Accessories
**Manufacturer:** B&W
**Manufacturer code:** 1102863
**EAN:** 4012240051397
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 35.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bw-1102863--11830951

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

B+W step-down filter adapter (reduction ring) 58→43 mm, model 1102863. Allows attaching 43 mm threaded filters or accessories to lenses with a 58 mm filter thread. Metal construction ensures secure mounting and alignment. Useful for photographers who need to use smaller-diameter filters, adapt vintage filters, or combine optics across lens kits.

## Long description

The B+W step-down filter adapter 58→43 mm is a metal reduction ring designed to allow 43 mm threaded filters and accessories to be mounted on lenses with a 58 mm filter thread. Its precision-machined construction keeps the adapter thin while maintaining reliable alignment and secure attachment between lens and accessory. The adapter provides a simple mechanical solution for using smaller-diameter filters, adapting older or specialty filters, and increasing compatibility across a kit of lenses with different thread sizes.
Advantages
The metal construction ensures durability and a stable fit without flexing under normal use. The slim profile minimizes vignetting on many lenses while providing a consistent thread interface for 43 mm filters. The adapter is lightweight and compact, making it easy to carry in a camera bag and quick to attach or remove when switching filters. Its standardized thread sizes maintain reliable compatibility with common photographic accessories.
Suitable for
 Photographers who own lenses with a 58 mm filter thread but have 43 mm filters
 Using vintage or specialty 43 mm threaded filters on modern glass
 Combining small filters, such as protective or color filters, on lenses with larger threads
 Field work where carrying fewer filter sizes is desirable
Key specifications
 Mount type: reduction ring from 58 mm to 43 mm filter thread
 Material: metal construction for strength and precise threading
 Finish: machined surface to ensure smooth thread engagement
 Profile: low-profile design to reduce the risk of vignetting
 Weight and dimensions: compact and lightweight for portability
How to use
Gently screw the adapter into the lens front filter thread (58 mm) until it seats firmly without cross-threading. Then attach the 43 mm filter or accessory to the adapter by screwing it into the exposed 43 mm thread. To avoid damage, align threads visually before turning and stop when you feel resistance. Remove in reverse order, unscrewing the filter first and then the adapter from the lens.
Usage recommendations
Check for potential vignetting when using wide-angle lenses; the slim profile reduces this risk but some combination of lens and filter may still vignette. Keep threads clean and free of grit to prevent cross-threading. Use the adapter for non-rotating filters when possible to preserve focus or aperture adjustment functionality, and store the adapter and filters in protective pouches when not in use.

## FAQ

### How much does the B+W step-down adapter 58→43 mm 1102863 cost, and is it available for purchase?

The price is 42.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 02.07.2026 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 B&W 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 B&W 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/11830951/67231580_large.webp