# Massa lens adapter Olympus Four Thirds to M42 mount with AF confirmation

**URL:** https://aio.lv/en/product--massa-sb1262--11819552
**Data updated:** 2026-03-09 11:07 (EET)
**Category:** Camera Lenses
**Manufacturer:** Massa
**Manufacturer code:** SB1262
**EAN:** 5904647813410
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--massa-sb1262--11819552

## 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

Lens adapter for mounting Four Thirds (Olympus 4/3) lenses on M42 screw-mount cameras and bodies. Provides mechanical connection between lens and camera and transmits aperture/mechanical signals for AF confirmation where supported. Useful for adapting legacy Four Thirds optics to M42-compatible film or digital cameras for manual and confirmed autofocus workflows.

## Long description

The Massa lens adapter Olympus Four Thirds to M42 mount with AF confirmation enables attachment of Olympus Four Thirds (4/3) lenses to cameras and bodies with an M42 screw mount. The adapter provides a secure mechanical coupling between the lens and the M42 camera, maintaining correct flange distance for compatible focusing. In addition to the mechanical interface, the adapter transmits aperture/mechanical signals required for AF confirmation on cameras that support this function, allowing the camera to indicate focus confirmation when manual focusing with adapted lenses.
Advantages
This adapter offers a straightforward and robust solution for using legacy Four Thirds optics on M42-mount cameras. Its construction preserves the correct optical registration for accurate focusing and supports aperture/mechanical signal transmission for AF confirmation where supported by the camera body. The adapter is compact and lightweight, making it practical for both film and digital M42-compatible cameras while keeping the lens operation predominantly mechanical and predictable.
Suitable for
 Photographers adapting Olympus Four Thirds lenses to M42 screw-mount film cameras
 Owners of digital cameras with M42 mount or M42-compatible adapters seeking vintage Four Thirds optics
 Manual-focus workflows that require camera focus confirmation indicators
 Studio or location setups where lens interchangeability and consistent flange distance are needed
Key specifications
 Mount conversion: Olympus Four Thirds (lens) to M42 screw mount (camera)
 Function: Mechanical coupling with aperture/mechanical signal transmission for AF confirmation
 Material and finish: durable metal construction with matte surface (metal-to-metal interface)
 Compatibility: Designed for Four Thirds lenses and cameras/bodies with M42 screw mount or M42-compatible systems
 Dimensions: compact form factor to maintain correct flange focal distance for manual focus
 Weight: lightweight design suitable for handheld and tripod use
How to use
Attach the adapter to the Four Thirds lens by aligning the mount index and rotating until it locks into place. Then screw the lens with adapter onto the M42 camera body until secure. Verify that the mechanical coupling and aperture control operate smoothly. On cameras that offer AF confirmation with mechanical or electrical signal detection, enable focus confirmation in camera settings if necessary and perform manual focusing while observing the camera’s focus indicator. Remove the adapter by reversing the installation steps.
Usage recommendations
Use stop-down metering or manual exposure modes when working with adapted lenses, and check infinity focus and focus accuracy before critical shooting. Avoid forcing mounts when attaching or detaching; ensure both lens and camera threads are clean and free of damage to maintain reliable mechanical connection and AF confirmation function.

## FAQ

### How much does the Massa adapter Olympus 4/3 to M42 cost, and is it available for purchase?

The price is 27.49 € (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 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 Massa 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 Massa 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/11819552/67221859_large.webp