An adapter for mounting Leica R lenses on a Canon dSLR camera


The Leitax Leica-R / Canon EOS Adapter


I got the itch to try a Leica 50mm Summilux-R E60 on the Canon 1Ds Mark III. Part of the research included emails with David Lladó at Leitax. One thing led to another and with his guidance I ordered:

  1. 1)Canon EOS Bayonet for Leica-R Lenses (6 Holes)

  2. 2)Dandelion Chip for Canon, Pre-Installed on the Adapter

  3. 3)Irazola Screwdriver

  4. 4)The Plastic Tool shown on the Nikon page at the Leitax website

About two weeks later the Leitax kit arrived from the U.K. The 50 Lux R had been delivered about a week prior, so everything was in place.


With the lens in hand and a couple lens cloths on the table, I turned over the 50 Lux-R and started removing the bayonet screws. For the Canon adapter, set is very simple since the Leitax adapter sits on top of the Leica R ring. It is just a matter of lining up the screw holes and then using the longer screws to secure the adapter in place. Within another two or three minutes the Leitax adapter was securely in place and the 50 Lux-R was ready. Note - when all six screws are removed, the Leica mount will want to rotate because of the springs in the aperture mechanism. If the ball bearing for the aperture comes unseated, the Leica bayonet needs to be removed and the ball bearing reseated. It is an easy process and there pictures on Leitax’s website.

Next, programming the Dandelion chip. I followed the link to the Dandelion instructions - click here. “Dismount lens, turn off camera, turn on camera, remount lens, half press shutter...”  What...?... I am used to the Optix V5 focus confirmation chips, in comparison the Dandelion programming process is cumbersome, but it works. After setting the Dandelion optional parameter for manual focus, the Canon 1Ds Mark III worked as expected. Before changing the parameter, it turns out that the lens (chip) did work in auto-focus mode, but for the shutter to fire, the subject had to be in focus. If no beep, no shot. Obviously the default setting could lead to lots of missed shots. My recommendation, set the value to manual focus. The Dandelion chip installation on the adapter itself  looks pristine - especially compared to some of the other adapters I have seen with dried glue oozing from the edges.


The Leitax adapter is one piece, so it is rock solid. It screws to the Leica lens just like the original Leica bayonet. There is no flex, no shifting, no rotation. There are no flanges that need spreading to ensure a tight fit between the adapter and lens because the lens is SCREWED to the adapter. Likewise, the fit on the Canon 1Ds Mark III is perfect. It mounts as smoothly as a Canon lens, and when locked into place, there is barely any rotational play.

The adapter’s fit finish is equally good. The adapter is cupped and its sides slip over the original Leica bayonet, so the finished result looks like a Leica / Canon made product. The metal used appears to be nice quality with a satin nickel finish look. In short - everything lines up perfectly, clicks in place soundly and feels solid. I rank the fit and finish equal to Bo-ming’s work (Conurus) on the Contax N conversions. Adapter thickness appears correct as the 50mm Summilux-R reaches infinity without any problems (checked with Live View).


Leitax’s adapters use 6 or 10 screws (depends on the lens) to secure the lens to the adapter. This solution is rock solid and quality of the adapter appears excellent. This review is a no-brainer --- a big thumbs up for Leitax. To find out which lenses can work on a Canon dSLR, refer to the PebblePlace Leica Database. For more information Leitax about their adapters, visit