I used a T2-EOS adapter as stock for machining a replacement mount.
Left-handed thread milling.
Finished part designed to replace the breech-lock ring and has an EOS mount on the other side.
This allows for closer mounting than the EdMika adapters.
Finished modded lens, now ready to use on EOS.
Spectacular image quality, aperture wide open, and from a 1974 lens!
As a bonus, this image is taken in broad daylight, probably the harshest condition for a long and wide lens like this.
100% crop from the above image.
Almost 40 year old lens and it nearly outresolves a 22-megapixel full-frame sensor with very minimal chromatic aberration!
Another test, also aperture wide open.
... and a 100% crop. Spectacular optics.