# Lens Mount Adapter K&F for Sony Alpha E / NEX to M42 (K&F KF06.305)

**URL:** https://aio.lv/en/product--kf-sb6486--11819575
**Data updated:** 2026-03-09 11:07 (EET)
**Category:** Camera Lenses
**Manufacturer:** K&F
**Manufacturer code:** SB6486
**EAN:** 6936069273717
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kf-sb6486--11819575

## 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

Mount adapter by K&F allows attaching M42 screw-mount lenses to Sony Alpha E / NEX mount cameras. It provides physical compatibility between lens and camera bodies without electronic contacts. Useful for using vintage M42 lenses on Sony mirrorless bodies for manual focus and aperture control. Ideal for photography workflows needing manual lens control and creative use of legacy optics.

## Long description

The K&F Lens Mount Adapter for Sony Alpha E / NEX to M42 enables physical mounting of M42 screw-mount lenses onto Sony E-mount mirrorless cameras. This adapter provides a secure mechanical connection without electronic contacts, preserving the optical characteristics of legacy M42 lenses while allowing use on modern Sony bodies. It is intended for photographers who want to use manual-focus and manual-aperture lenses on Sony Alpha E / NEX systems and is compatible with a wide range of vintage and specialty M42 optics.
Advantages
The adapter offers a straightforward, robust solution for integrating M42 lenses with Sony E-mount cameras. Its simple mechanical design maintains flange focal distance for correct infinity focus with compatible lenses and provides a stable, metal-mounted interface for repeatable lens positioning. Absence of electronic contacts avoids compatibility issues and ensures predictable manual control of focus and aperture. The compact form factor preserves camera handling and balance when attaching small to medium-sized M42 lenses.
Suitable for
 Photographers using vintage M42 screw-mount lenses on Sony Alpha E / NEX mirrorless cameras
 Manual focus portrait, landscape and macro photography with legacy optics
 Creative work requiring unique rendering, bokeh, and optical imperfections of older lenses
 Educational use and lens testing where electronic automation is not required
Key specifications
 Mount conversion: M42 screw mount to Sony Alpha E / NEX mount
 Construction: metal body for durable lens-to-camera connection
 Optical behavior: passive adapter without electronic contacts or signal transmission
 Focus compatibility: maintains correct flange distance to allow infinity focus with matching M42 lenses
 Weight and size: compact, lightweight design to minimize added bulk
How to use
Mount the adapter onto the camera’s Sony E-mount bayonet by aligning the adapter index and rotating until it locks. Then screw the M42 lens into the adapter’s threaded mount until secure. Use the lens’s manual focus and aperture controls to set exposure and focus. Because there are no electronic contacts, set exposure using camera manual, aperture-priority, or by using an external light meter as needed. Remove the lens and adapter by reversing the steps, taking care not to cross-thread the screw mount or force the bayonet lock.
Usage recommendations
For best results, test infinity focus and check for light leaks after mounting. Use a viewfinder or focus magnification on the Sony camera to achieve precise manual focus. When using lenses without an automatic diaphragm, stop down the aperture on the lens before composing or use a lens with a working aperture lever if available. Handle the adapter and lens threads carefully to avoid wear; store the adapter in a dry place when not in use.

## FAQ

### How much does the K&F Lens Adapter Sony Alpha E to M42 KF06.305 cost, and is it available for purchase?

The price is 34.99 € (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/11819575/67221891_large.webp