K&F Concept C/Y-E Pro – Contax/Yashica Lens to Sony E Mount Adapter

The K&F Concept C/Y-E adapter lets you mount Contax/Yashica-mount (C/Y) lenses on Sony E-mount cameras. It has no electronic contacts: you focus manually, set the aperture on the lens, and the lens focuses all the way to infinity. The all-metal body made of hardened anodised aluminium has a matte interior that suppresses light reflections, and a red dot makes mounting easy.

Contax/Yashica lenses on Sony E cameras

With the C/Y-E adapter you can attach Contax/Yashica-mount (C/Y) lenses to Sony E-mount cameras and keep using them on a modern body. The adapter is precision-made, so the lens sits firmly and focuses all the way to infinity.

Metal construction with a matte interior

The all-metal adapter made of hardened anodised aluminium fits the lens and camera precisely. The matte interior suppresses light reflections inside the adapter, and a red dot makes mounting and removal easy.

Manual focus and aperture

You focus with the ring on the lens while the camera works in aperture priority or manual mode. The aperture is set with the aperture ring on the lens.

Camera settings

Before first use, enable the option in the camera menu that allows the shutter to be released without a lens attached (Release w/o Lens). The camera does not recognise an adapter without contacts and would not release the shutter without this setting.

Good to know

With telephoto and super-telephoto lenses the infinity position may shift slightly, so always check focus at infinity in the viewfinder or on the screen.

Compatible cameras

The adapter is designed for Sony E-mount cameras, for example Sony NEX-3, NEX-3C, NEX-3N, NEX-5, NEX-5C, NEX-5N, NEX-5R, NEX-5T, NEX-6, NEX-7, NEX-F3, α3000, α3500, α5000, α6000, α7, α7R, α7S, α7 II, α7S II, α7R II, NEX-VG10, NEX-VG20.

Before you order

You will find the mount type of your lens and camera in their manuals or in the technical specifications on the manufacturer's website. The C/Y-E adapter is designed for a Contax/Yashica (C/Y) lens on a Sony E camera.