There has been a lot of chatter about the image quality of the Sony 200-600mm zoom lens when used with the new high-resolution Sony a1 camera body. My observations were limited in time and opportunity, but I don't see any issues with the incredible level of detail in this full-frame image of a Great Gray Owl in a snowstorm. I purposely tested the camera in the field as I typically use my equipment to produce the kind of images that excite me.

What I can tell you is that this may not be the best example to clearly define any issues that the lens may have when paired with an ultra-high-resolution camera. If I were to try to find a weakness, then I would test it for edge-to-edge sharpness, chromatic aberration, image degradation, and barrel distortion on something as simple as a black and white chessboard; an image with lots of contrast and linear lines. To test that most accurately and rule out any interference from traffic or ground tremor vibrations I would have to use one of only a very few seismically stable platforms that are typically used to test/measure helicopter or jet engine vibrations.

My advice is to completely ignore the critics who are photographing outside of their usual genre and posting bird pictures that most of us would throw in the trash: always to test equipment under the conditions that you would normally use it - smile.