CO/Y (Contax/Yashica) to Sony E (NEX) Lens Mount Adapter

Precision Manual Lens Mount Adapter

The CO/Y (Contax/Yashica) to Sony E (NEX) Lens Mount Adapter enables photographers to mount classic Contax and Yashica C/Y mount lenses onto Sony E-mount mirrorless cameras. Designed with precision-machined metal construction, the adapter maintains the correct flange distance, allowing lenses to focus to infinity while preserving their original optical performance.

This adapter contains no optical glass, ensuring that image quality is not affected. It is ideal for photographers and collectors who wish to use legendary Contax Zeiss and Yashica lenses on modern Sony mirrorless systems.

Specifications

• Brand: Unbranded / Generic
• Model: CO/Y – NEX Lens Adapter
• Adapter Type: Manual Lens Mount Adapter
• Lens Mount: Contax/Yashica (CO/Y or C/Y)
• Camera Mount: Sony E Mount / Sony NEX
• Construction: Precision CNC Machined Metal
• Material: Aluminium Alloy with Stainless Steel Mount
• Infinity Focus: Supported
• Autofocus: Not Supported
• Electronic Contacts: No
• Image Stabilization: Not Supported
• Aperture Control: Manual via Lens

Key Features

• Precision CNC-machined metal construction
• Enables use of vintage Contax/Yashica lenses on Sony E cameras
• Maintains infinity focus
• Secure bayonet locking mechanism
• No optical elements for maximum image quality
• Lightweight and durable
• Easy installation and removal
• Ideal for photography and videography
• Excellent compatibility with vintage manual-focus lenses

Compatible Lens Mount

• Contax C/Y Mount Lenses
• Yashica ML Series Lenses
• Carl Zeiss Contax/Yashica Lenses
• Other CO/Y Mount Manual Lenses

Compatible Camera Mount

Compatible with all Sony E-Mount mirrorless cameras including:

• Sony NEX-3 / NEX-5 / NEX-6 / NEX-7
• Sony A5000
• Sony A5100
• Sony A6000
• Sony A6100
• Sony A6300
• Sony A6400
• Sony A6500
• Sony A6600
• Sony A6700
• Sony A7
• Sony A7 II
• Sony A7 III
• Sony A7 IV
• Sony A7R Series
• Sony A7S Series
• Sony A9 Series
• Sony ZV-E10
• Sony FX30
• Sony FX3

Condition

• Pre-owned adapter in good cosmetic condition.
• Shows minor signs of normal use.
• Mount surfaces appear clean.
• Locking mechanism appears intact.
• Please refer to all photographs carefully as they form an important part of the description.

You will receive exactly the adapter shown in the photographs.

Included

• 1 × CO/Y (Contax/Yashica) to Sony E (NEX) Lens Mount Adapter

No lens, camera body, caps, box, manuals, or accessories are included unless shown in the photographs.

Important Notes

• Manual-focus operation only.
• Autofocus and electronic aperture control are not supported.
• Lens aperture must be adjusted directly on compatible manual lenses.
• No optical glass is used in this adapter; image quality remains unchanged.
• Designed exclusively for adapting Contax/Yashica (CO/Y/C/Y) lenses to Sony E-mount mirrorless cameras.

NO RETURNS • NO REFUNDS • NO EXCHANGES

This item is sold strictly on an "AS IS, WHERE IS" basis.

• No returns, refunds, exchanges, or cancellations.
• Please inspect all photographs carefully before purchasing.
• Buyer accepts the item in its present condition.
• No warranty or guarantee is expressed or implied.
• Purchase only if you are satisfied with the item's condition and compatibility.

You will receive exactly what is shown in the photographs.