Yes, the 200-600 can produce sharp images on the a7riv, I don't think anyone who is reasonable can assert otherwise. The problems seem to occur when the two are paired together on moving subjects. One can't easily explain the love/hate relationship with this lens. Perhaps it is the relative compactness, internal zoom, and easy hand holdability of this lens which makes it so attractive? That wonderfulness is quickly offset by the tendency to CA and the cheap hood, but what the heck it's a $2k lens! It's not that one can't take an in focus shot of BIF, but more often than not, the images will lack critical focus. Admittedly, one has to push the Tv up by at least another f-stop or two to minimize shake but even then, more often than not, many images are simply OOF. Analyzing the images active AF point hasn't been illuminating, switching off the OS hasn't helped, changing the AF settings haven't made much of a difference either. If the lens performed this way on the a9, one could conclude that it was simply the deficiency of the lens but that's not the case. Perhaps it is simply a limitation of the read out speed or calculation ability when using a 60+ mp sensor with current processors?
May 10, 2020 at 10:30 PM
Previous versions of armd's message #15224091 « Giving up on a7RIV and 200-600 :-( »
