We sell Leitax mounts to use Leica-R lenses on Canon cameras.

Welcome to Leitax, this is our Leica-Canon EOS page. I never thought I would make a Canon-EOS mount too. After all, there are plenty of adapters in the market that you can use just turning the Leica lenses on them.

But I had regularly requests from Canon photographers that were not happy with those adapters, it seems the adapter solution is very convenient but has several problems:

Most of the complains are for the usual poor slot-spring solution to hold the Leica-R lens against the adapter. This is not good because the tension of the mount is made by wedging a soft metal with a slot. The slot will deform but will not bounce back to shape. Over time the adapter will be loose fitting and the lens will tilt, specially heavier lenses.

Also using an adapter you have two groups of springs, two pieces fastened together and two different  mechanical couplings. This makes the precision of the ensemble a matter of luck most of the cases.

The Leitax mount will be screwed on top of the Leica-R original mount. This way, even the heaviest Leica-R lens will be as solid in your Canon camera as any Canon lens. The mount is made in one piece and the mechanical precision is not compromised.

The Leitax mount on sale here is appropriate for Leica-R lenses with six or ten holes at the original bayonet. If you have a lens with eight holes at the bayonet or the Vario-Elmarit 35-70/2.8 Macro lens, please contact me before ordering.

Our Leitax mount will trigger the AF switch in 1D series bodies.

There is a convenient flat surface in our mount to glue an electronic chip if desired. This chip will enable the focus confirmation light in the viewfinder.

Your Canon camera can meter and adjust the correct exposure in A and M modes with adapted Leica-R lenses.

The Leica-R lenses will focus to infinity and will maintain the aperture click stops. After checking many models produced for several decades in three countries, we found differences at the point they focus to infinity, so our bayonet is measured to focus to infinity with all of them. Thus, maybe some units will reach even beyond infinity, in this case turning back the focusing ring just half millimeter is enough.

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Questions?     info@leitax.com

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Some Leica-R lenses can hit the mirror of the Full Frame Canon cameras with the rear barrel/protection of the lens.

This has been discussed in the past for the adapter solution in many forums and it is specially well explained at the Pebbleplace site.

You can find a list of compatible Leica-R lenses there.


The Leitax mount for Canon fits perfectly over the original Leica-R bayonet, we provide six new longer screws to attach solidly our mount on the Leica-R lens.

But I recommend to remove only five screws on the Leica-R lens. This way the original Leica-R bayonet will never lose the correct position on the lens, and there is no risk to have the small internal ball bearing out of place.

Please take a look at these instructions:


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- You can see pictures taken with Leica-R lenses with modern digital cameras at the Leitax group at Flickr.

- Caution! The Summilux 50/1.4 E60, Summilux 35/1.4, Apo-Elmarit 180/2.8 and 28-90/2.8-4.5 ASPH lenses use screws of different diameter, so the standard diameter screws provided with my bayonet will not work. Please let me know if you want to use this lenses and I will send you additional thinner screws.

- Some Leica-R Zoom lenses use longer screws at the standard six hole positions, for example:

      - Vario-Elmar 21-35/3.5-4.0 ASPH
      - Vario-Elmarit 28-90/2.8-4.5 ASPH

I was offering special longer screws to use the Leitax bayonet on these lenses. But now, the longer screws are discontinued by Leica and now I'm offering a new ten holes bayonet. This way, you can use our normal (or thinner) replacement screws on the positions where these lenses have the shorter screws (4 mm)

- Caution! The Vario-Elmarit 35-70/2.8 ASPH lens has a special mount and only two of the screw positions of our mount will coincide, if you are not comfortable using two screws to attach this lens, better to have a normal adapter for this lens. Perhaps in the future I will produce a special bayonet for this lens if I get one of these lenses to take measurements.

- New! I've checked the Vario-Elmar 80-200/4 ROM, this lens is fine with our standard six hole bayonet, just use again the four longer screws on the Leitax bayonet and two of the provided screws at the top and bottom positions.

- Caution! The Canon 1d series need to install a chip on the Leitax bayonet to work at all. If you wish to use these cameras without a chip, let me know. I will make a special version for you.

- New! To use the Vario-Elmarit 28-90/2.8-4.5 ASPH on Full Frame Canon Cameras, may be necessary to remove the plastic shroud at the rear of the lens, I'm offering this service here at Leitax, keeping the aperture ring operational.

You can order the Leica-Canon bayonet here, remember that even if your lens has ten holes at the bayonet base, it doesn't mean it needs a ten holes Leitax bayonet (although it would work), please check which lenses use this mount  a bit up in this page.


canon bayonet, no adapter This is the Canon EOS bayonet for Leica-R lenses.

Also included six replacement screws

Please take a look at the instructions		 58 Euro

And this is the new ten holes bayonet, it is necessary for several Leica zoom lenses that use very long screws at the standard six screw positions, and you'll need to use the extra four positions.
It can be used on all Leica-R lenses, because it has the standard six hole positions too.

Also included six  replacement screws.

 63 Euro
This is the last version of the Dandelion chip for Canon.

- Exif data programmable.
- Focus confirm point adjustment.
- Programming instructions
- How to put the chip in program mode		 Out of Stock
19 Euro
You can have your Leitax mount with the Dandelion chip already glued on it.

This price includes a chip and installation on the Leitax mount of your choice.		 Out of Stock
24 Euro
This is the glue I use, it is strong and will not stick your fingers at once. 7 Euro
Canon cap You may need a generic Canon EOS rear lens cap. 2 Euro
Techcap But, if you want the best, I can offer now the OP/TECH USA cap.

-It has a rubber O-Ring that seals the lens from dust and moisture.

-The O-ring also forms tight friction, it will avoid losing the cap.

-It covers the entire bayonet diameter, providing more protection against blows and scratches.		 9 Euro

I use this model for all the Phillips screws in the Leica and Zeiss lenses, it is industrial grade quality made by Irazola, and the design is very good, you can push and turn it firmly with the rotary end and the rubber finish.

 5 Euro
hemisphere If your Leica lens has lost the plastic red hemisphere, you can glue a new one.

Original Leica spare part.
 Original Leica
Max. two pieces
1 Euro

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