Contax 645 - GFX Smart Adapter

Key features

Electronic aperture control, Auto focus, Correctly record EXIF information, Compatible with all Contax 645 lenses and Well designed and made

Electronic aperture control

Using aperture ring of the lens or command dial on the body to control the aperture.

Auto focus

Except the MF lens 120/4 which is manual by design, all Contax 645 lenses as well as the Mutar 1.4x are suppored to AF on GFX50s.

Correctly record EXIF information

Lens model, Max/current aperture, Focal length, etc.

Compatible with all Contax 645 lenses

Including 35/3.5, 45/2.8, 55/3.5, 80/2, 120/4, 140/2.8, 210/4, 350/4, 45-90/4.5 and Mutar 1.4x

Well designed and made

Designed for 44 x 33 frame. Unlike 135 lenses, no vignetting issues. Built-in tripod mount (Arca quick release compatible) without additional cost. Flocking inside minimized the internal reflection. Full metal body, copper (front & back) mount, durable design, Field upgradable (through built-in micro USB port)

Contax 645 lenses compatible list

The C645-GFX adapter is compatible with all C645 lenses.

AF/MF

Lenses with better AF performance

Distagon T* 3,5/35
Distagon T* 2,8/45
Distagon T* 3,5/55
Planar T* 2/80
Sonnar T* 2,8/140
Sonnar T* 4/210
Tele-Apotessar T* 4/350
Vario-Sonnar T* 4,5/45-90

AF/MF

Lenses with degraded AF performance

Sonnar T* 2,8/140 + Mutar 1,4x T*
Sonnar T* 4/210 + Mutar 1,4x T*
Tele-Apotessar T* 4/350 + Mutar 1,4x T*

MF only

MF only lens

Apo-Makro-Planar T* 4/120