I received a new RF 70-200mm f/2.8L IS from an authorized dealer today. Tried it out of the box and was astounded by the speed of the AF and the sharpness of the lens. It had firmware 1.0.3.
I then installed the update, 1.0.6. The camera reported the procedure as successful.
Immediately afterwards the AF became sluggish at 70mm on up to almost 200mm, struggling in fact. But at 200mm, complete fail, no acquisition of any target at any distance. Light was good. Targets had contrast and plenty of varied patterns. One target is the statue in our home that I always use to test new lenses, as the face is fairly lifelike.
It did seem that toggling the delimiter while at any focal length, and then zooming to 200mm, triggered the issue consistently. A few times when AF failed at 200mm I could attain focus by varying the distance to subject until AF "woke up" again, but most of the times it just would not begin to function again at 200mm unless I zoomed back to 70mm. Going again to 200mm would cause AF to fail again
Canon CPS talked me through a few trouble shooting steps but felt that none of my camera settings should have had any effect. Fortunately I did have a second R body on hand to make sure it was only the lens having a problem. Identical AF fail on both bodies.
So, to sum up, after updating to 1.0.6, the AF would fail consistently when zooming to 200mm. And AF at all focal lengths struggled. Before the firmware update all was well.
Of course I kick myself for having updated so fast, but the CPS tech said once it's released it's assumed safe.
He did want me to send the camera to Canon, but understood I wanted to get it back to the dealer ASAP.
Now I'm worried about getting another one until hearing more about how the firmware is playing out, or maybe seeing a revision.
I then installed the update, 1.0.6. The camera reported the procedure as successful.
Immediately afterwards the AF became sluggish at 70mm on up to almost 200mm, struggling in fact. But at 200mm, complete fail, no acquisition of any target at any distance. Light was good. Targets had contrast and plenty of varied patterns. One target is the statue in our home that I always use to test new lenses, as the face is fairly lifelike.
It did seem that toggling the delimiter while at any focal length, and then zooming to 200mm, triggered the issue consistently. A few times when AF failed at 200mm I could attain focus by varying the distance to subject until AF "woke up" again, but most of the times it just would not begin to function again at 200mm unless I zoomed back to 70mm. Going again to 200mm would cause AF to fail again
Canon CPS talked me through a few trouble shooting steps but felt that none of my camera settings should have had any effect. Fortunately I did have a second R body on hand to make sure it was only the lens having a problem. Identical AF fail on both bodies.
So, to sum up, after updating to 1.0.6, the AF would fail consistently when zooming to 200mm. And AF at all focal lengths struggled. Before the firmware update all was well.
Of course I kick myself for having updated so fast, but the CPS tech said once it's released it's assumed safe.
He did want me to send the camera to Canon, but understood I wanted to get it back to the dealer ASAP.
Now I'm worried about getting another one until hearing more about how the firmware is playing out, or maybe seeing a revision.