# Intermediate Adapter Rings Massa SB638 for Canon cameras (mount adapter rings)

**URL:** https://aio.lv/en/product--massa-sb638--11339303
**Data updated:** 2026-03-07 19:58 (EET)
**Category:** Camera Lenses
**Manufacturer:** Massa
**Manufacturer code:** SB638
**EAN:** 5903876997687
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--massa-sb638--11339303

## 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

Massa SB638 intermediate adapter rings designed for Canon cameras. These adapter rings provide a mechanical interface between lenses and Canon camera bodies, enabling use of compatible lenses or accessories that require an intermediate mount. Suitable for photographers needing lens-to-body adaptation, macro setups, or stepwise optical configurations without electronic communication.

## Long description

The Massa SB638 intermediate adapter rings for Canon cameras provide a mechanical interface to join lenses, extension tubes or other optical accessories to Canon camera bodies. Designed for setups that require a stable physical connection without electronic contacts, these adapter rings are intended for photographers who need to adapt compatible lenses or create multi-component optical assemblies for macro, close-up or specialist work.
Advantages
The adapter rings offer a precise mechanical fit and maintain correct flange distance for predictable focusing behavior when combining lenses or optical components. Built to be compact and lightweight, they do not add electronic complexity and therefore preserve full manual control of aperture and focus. Their metal construction ensures durable mounting and repeatable alignment during repeated assembly and disassembly.
Подходит для
Макро- и крупноформатной схемы с несколькими компонентами
Соединения объективов и переходников в ручном режиме
Фотосъёмки, где не требуется электронная передача данных между объективом и камерой
Экспериментов со сборкой оптических систем и адаптацией нестандартных объективов
Key specifications
Compatibility: mechanical adapter rings for Canon camera mounts
Function: intermediate mechanical connection between lens elements and camera body
Construction: metal body for durability and stable alignment
Contact type: no electronic contacts — manual aperture and focus control only
Form factor: low-profile, lightweight ring designed for stacking with other adapters or tubes
How to use
Attach the Massa SB638 ring to the Canon camera mount by aligning the indexing marks and securing the ring with a slight twist until it locks into place. Mount the compatible lens or accessory onto the opposite side of the ring, ensuring proper seating and alignment. When used as part of a stacked multi-component setup, assemble components in sequence and check flange distance and focus range before critical shooting. Operate aperture and focus manually on the lens, since the adapter provides no electronic communication.
Usage recommendations
Use the adapter primarily on a stable tripod or support when working with stacked optics or macro configurations to avoid strain on the camera mount. Verify mechanical fit and alignment before each use and avoid forcing incompatible components together.

## FAQ

### How much does the Intermediate Adapter Rings Massa SB638 for Canon cost, and is it available for purchase?

The price is 15.49 € (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

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