Mr.Ding Studio’s Contax G To Canon RF Adapter
Mr.Ding Studio has released a new lens adapter that lets you use Contax G rangefinder lenses on Canon RF mirrorless cameras. Unlike a regular mechanical adapter, this one also comes with its own focusing ring and electronic contacts, allowing the camera to provide focus confirmation and save certain lens information in the photo's EXIF data. Contax G lenses are a bit different from most manual-focus lenses, since they use an internal focusing mechanism instead of a conventional focusing ring on the lens itself. To make them work on Canon cameras, Mr.Ding has included a mechanical coupling blade that connects to the lens's focusing mechanism. You can then adjust focus using the ring built into the adapter.
The adapter also has a built-in electronic chip that communicates with the camera and allows you to use Canon's focus confirmation indicator. According to Mr.Ding, this should make it easier to achieve accurate focus compared to relying entirely on focus peaking. There is also support for trap focusing, which can be enabled through the camera settings on compatible bodies. Another feature is the adapter's built-in database of Contax G lenses, which stores information such as focal length and maximum aperture. You can select the lens you are using, and the adapter will pass that information to the camera so it can be saved in the EXIF metadata. There are some limitations, though. According to the company, manually setting aperture values beyond f/8 can lead to incorrect exposure readings because of restrictions in Canon's system.
As for the adapter itself, it weighs 75g. Mr.Ding Studio has also confirmed that it is working on a similar Contax G to Panasonic L-mount adapter, which is expected to offer electronic focus confirmation as well. The new Mr.Ding Contax G to Canon RF adapter is priced at $169.
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