People have fallen in love with the Sony A7 series of cameras. What has kept others from purchasing into the Sony system was their lack of lenses. When you buy a camera that takes interchangeable lenses you are not only buying a camera; you are buying into a system. Even though these Sony cameras have been great, their "system" was not due to a lack of available lenses. Sony and Zeiss are building out their lens collection rapidly with very good lenses.

          With the introduction of the new A7R II everything changed. This camera now works efficiently with Canon lenses via adapters. Now with previous A7 series cameras Canon's lenses also worked via adapters BUT they focused really slowly; so slowly that it was only good enough for landscape photography.

          Since the introduction of this new camera a few photographers got to play with them fitted with adapters and Canon glass. It is claimed that they focus as fast or almost as fast as on Canon cameras. This is huge; we can now use Canon lenses on the Sony cameras and get the same (or almost the same) focusing speed as we would have had on a Canon Camera.

          Canon photographers love their lenses. Many stuck with Canon only because of the lenses. Now they get to use their beloved lenses on the Sony sensors without sacrificing focusing speed. With this camera Sony has effectively transformed Canon into a lens manufacturer for Sony. Canon has become Sony's Sigma or Tamron; a third party lens supplier.

          When camera manufacturers claim such important break throughs we have to wonder if the product will actually live up to their claims. In this case there are many videos on video hosting sights that demonstrate the camera's ability to focus quickly with Canon lenses via the adapters. This is not hype; you can see it for yourself.

          The biggest hurdle to switching camera brands has always been the lens system. When a photographer has invested thousands of dollars to get an arsenal of lenses which must be sold for a hit, then requiring substantial investment again to replace the sold lenses with new lenses from the different brand, switching does not look very attractive. With this new camera Canon photographers can keep their lenses, buy a $100.00 adapter and use them on the Sony. The hurdle to switching has just disappeared.

          Ironic that Canon must not have loved Sigma and Tamron for selling lenses to Canon users for a fraction of the cost of Canon lenses, yet now, Canon has become a third party lens manufacturer for Sony. Canon has truly become Sigma and Tamron for Sony!

          For now I plan to keep two of my Canon lenses to use on my Sony. If professional testing proves the auto-focus speed of Canon lenses on the Sony to be as claimed, I suspect that many Canon users will buy Sony cameras.