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FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Contax-Yashica Mount Lens to Canon EF or EF-S Mount Camera

BH #FOCYEOSPFC10 • MFR #CY-EOS-PRO-FC10
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FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Contax-Yashica Mount Lens to Canon EF or EF-S Mount Camera
Key Features
  • Contax-Yashica Lens to EF/EF-S Body
  • Enables In-Camera Focus Confirmation
  • Supports Focusing to Infinity
  • Brass Lens Mounting Ring
This FotodioX Pro Lens Mount Adapter allows a Contax-Yashica mount lens to be used on a Canon EF or EF-S mount camera. It is designed to support focusing to infinity and utilizes a brass lens mounting ring to provide a durable, yet lightweight camera-to-lens connection.
More Details

FotodioX CY-EOS-PRO-FC10 Overview

This FotodioX Pro Lens Mount Adapter allows a Contax-Yashica mount lens to be used on a Canon EF or EF-S mount camera. It is designed to support focusing to infinity and utilizes a brass lens mounting ring to provide a durable, yet lightweight camera-to-lens connection.

A Generation v10 chip built into the adapter enables focus confirmation within a Canon EF or EF-S mount camera when used with a Contax-Yashica mount lens. This feature allows focus to be quickly and accurately achieved through a compatible camera's viewfinder or live view feature.

  • Allows a Contax-Yashica mount lens to be used on a Canon EF or EF-S mount camera
  • Built-in Generation v10 chip enables in-camera focus confirmation
  • Attached lens can focus to infinity
  • Brass construction and mounting ring provide a lightweight camera-to-lens connection with enhanced durability
  • Locking mechanism for secure attachment of lens with release lever
UPC: 847372045914

FotodioX CY-EOS-PRO-FC10 Specs

Item Type
1x Lens Mount Adapter
Camera Compatibility
Canon EF Mount
Lens Compatibility
Contax/Yashica Mount
Electronic Communication
No
Included Shims
Materials
Brass
Dimensions
2.68 x 2.68 x 0.28" / 6.8 x 6.8 x 0.7 cm
Weight
1.2 oz / 34.02 g
Packaging Info
Package Weight
0.095 lb
Box Dimensions (LxWxH)
3.55 x 3.15 x 0.7"

FotodioX CY-EOS-PRO-FC10 Reviews

Beware — difficult to remove from lens

By James
Rated 3 out of 5
Date: 2026-03-26

Beware this lens-mount adapter (Fotodiox Pro CTX-EOS) — difficult to remove from lens. Other Fotodiox adapters have a simple lever to press and the adapter comes off the lens. Not so with this one. It took me forever to figure it out. There is a small, slightly bent piece of aluminum approximately across the diagonal of the circle from the “chipped” contacts. That is, about 180 degrees from the contacts. You have to reach in there and press it horizontally outward toward the outer edge of the adapter. I put this on a Zeiss 180mm f2.8 Sonnar lens. I forgot the lens had a Contax mount. Most Fotodiox adapters have the name of the adapter written on the edge of the adapter. Not this one. That info is on the front side of the adapter that will be attached to the lens and therefore not visible. (Such a problem, forgetting what kind of lens you have.)

Good, a tad wonky

By Jeffrey
Rated 3 out of 5
Date: 2025-12-15

I'm glad I got this adapter for my 50mm Contax lens on my 5D iv. It's a bit wonky int he fit and getting it on the lens, but does a good job on the focus confirmation. The only exception is low light; the Fotodiox pro seems to stop working!

See any errors on this page?

Will this work with a Canon EOS 1? Thanks

Will this work with a Canon EOS 1? Thanks
Asked by: Leo
Yes this adapter can work with a Canon EOS 1.
Answered by: Kirk R
Date published: 2020-12-16
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