# Emolux Lens Adapter Pentax K to M42 — Infinity Focus with Lock (SB773)

**URL:** https://aio.lv/en/product--emolux-sb773--11819752
**Data updated:** 2026-03-09 11:07 (EET)
**Category:** Camera Lenses
**Manufacturer:** Emolux
**Manufacturer code:** SB773
**EAN:** 5903876990220
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--emolux-sb773--11819752

## 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

Mechanical lens adapter by Emolux allowing mounting Pentax K-mount lenses onto M42-thread camera bodies. Model SB773 supports infinity focus and includes a locking mechanism to secure the lens in place. Designed for adapting vintage or modern Pentax K lenses to M42-threaded cameras for photography and optical experiments where compatibility and stable attachment are required.

## Long description

The Emolux Lens Adapter Pentax K to M42 — Infinity Focus with Lock (SB773) is a mechanical adapter designed to mount Pentax K-mount lenses onto cameras or devices with an M42 screw thread. It provides a physical connection between two incompatible mounts while preserving manual control of aperture and focus. The SB773 model supports infinity focus and includes a locking mechanism that secures the lens to the adapter to prevent accidental rotation or separation during use.
Advantages
This adapter allows photographers and optical hobbyists to use Pentax K lenses on M42-threaded camera bodies without electronic communication, retaining the optical characteristics of the mounted lens. Infinity focus capability enables landscape and distant-subject photography without loss of focus range. The integrated locking mechanism offers a reliable mechanical hold, improving stability when composing and focusing. The all-mechanical design ensures durability and simple, tool-free operation.
Suitable for
Photographers using vintage Pentax K lenses on M42 camera bodies
Optical experiments and macro setups requiring manual lens control
Film or digital systems with M42 mounts seeking compatibility with K-mount optics
Studio and field work where a secure, locked lens attachment is necessary
Key specifications
Mount conversion: Pentax K (female side for lens) to M42 (male screw thread for camera)
Infinity focus support: yes — maintains infinity focus when used on compatible camera bodies
Locking mechanism: mechanical lock to secure lens attachment
Construction: metal alloy body for mechanical strength and durability
Optical path: passive mechanical adapter with no electronic contacts or optical elements
Compatibility note: intended for manual aperture and focus operation; no electronic communication or autofocus
How to use
Mount the Pentax K lens onto the adapter by aligning the lens bayonet with the adapter’s K-mount and turning until it clicks into place. Engage the locking mechanism to secure the lens against accidental rotation. Screw the adapter’s M42 thread into the camera’s M42 female mount until it is seated firmly. Adjust the lens aperture and focus manually on the lens; confirm infinity focus by focusing on a distant subject and, if necessary, fine-tune the camera’s focus assist or viewfinder settings. To remove the lens, disengage the lock and reverse the mounting steps.
Usage recommendations
Use the adapter on cameras that physically accept M42 threads and support manual focusing at infinity; avoid forcing threads and ensure the lock is engaged before operating the camera. Because the adapter has no electronic connections, verify metering and exposure control compatibility with your camera body and prefer manual or aperture-priority modes when required. Regularly check the locking mechanism and threads for wear and keep contact surfaces clean to maintain a stable mechanical connection.

## FAQ

### How much does the Emolux Pentax K to M42 Adapter SB773 cost, and is it available for purchase?

The price is 17.99 € (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 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 Emolux 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 Emolux 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/11819752/67222085_large.webp