# Lens Mount Adapter K&F SB6419 — Canon EOS R/RA/RP to M42 (M-42) mount

**URL:** https://aio.lv/en/product--kf-sb6419--4824213
**Data updated:** 2026-03-07 14:59 (EET)
**Category:** Camera Lenses
**Manufacturer:** K&F
**Manufacturer code:** SB6419
**EAN:** 6936069267112
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 30.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb6419--4824213

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

K&F SB6419 lens mount adapter enables use of M42 screw-mount (M-42) lenses on Canon EOS R, RA and RP mirrorless cameras. The mechanical adapter provides physical mounting and correct flange spacing for manual focus and aperture control with compatible lenses. Ideal for photographers who want to adapt vintage M42 lenses for mirrorless EOS R-series bodies for creative manual shooting.

## Long description

The K&F SB6419 lens mount adapter allows photographers to attach M42 screw-mount lenses to Canon EOS R, RA and RP mirrorless cameras. This mechanical adapter provides the correct flange distance and secure connection for manual-focus and manual-aperture M42 lenses, enabling use of classic optics on modern EOS R-series bodies. It does not add electronic communication; exposure and focus are controlled from the lens and camera manually.
Advantages
The adapter is constructed to maintain accurate flange focal distance and firm mechanical fit between lens and camera body, preserving infinity focus with compatible lenses. Its simple, all-mechanical design is durable and lightweight, making it convenient for field use. By enabling M42 lenses on Canon EOS R, RA and RP cameras, the adapter expands creative options and access to a wide range of vintage optics without altering lens characteristics.
Suitable for
Photographers who want to use vintage M42 screw-mount lenses on Canon EOS R, RA and RP cameras
Manual-focus portrait, landscape and street photography with adapted lenses
Creative projects requiring distinctive lens rendering, vignetting or flares from classic glass
Users adapting lenses for video work where manual focus and aperture control are acceptable
Key specifications
Mount type: M42 (lens side) to Canon RF (camera side)
Compatibility: Canon EOS R, RA and RP mirrorless bodies
Design: all-mechanical adapter without electronic contacts
Material and finish: metal construction for mechanical stability
Function: maintains correct flange focal distance for infinity focus with compatible lenses
How to use
Attach the M42 lens to the adapter by screwing the lens into the M42-thread side until secure, then align and mount the adapter onto the Canon EOS R/RA/RP camera body, turning until the adapter locks into place. Set the camera to manual exposure or an appropriate exposure mode to allow the use of manual-aperture lenses. Use focus assist aids in the camera, such as focus peaking or magnification, to achieve precise manual focus. Check framing and exposure in the viewfinder or on-screen and adjust aperture and shutter speed as required.
Usage recommendations
For best results, verify the adapted lens achieves infinity focus on your specific camera body before critical shoots and use focus peaking or magnified live view to ensure accurate focusing. Because the adapter lacks electronic communication, confirm exposure settings manually and consider using a tripod or remote release for slower shutter speeds.

## FAQ

### How much does the Lens Mount Adapter K&F SB6419 for Canon EOS R/RA/RP cost, and is it available for purchase?

The price is 36.99 € (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 01.07.2026 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/4824213/30324492_large.webp