. . . by unsteady OIS.
Getting critically accurate focus on flat surfaces is one thing. But on contours and small motives it’s another matter altogether. OIS can really foul things up by giving a shaky finder.
Unless I dreamed it, the Sigma dock and software I used last year had a setting that could alter how OIS affected the finder image, the tradeoff being a longer time to stabilize. Seems to me that having my critter flee sometimes before I get to click the shutter button is a preferable alternative to coming home with 60% of my shots out of focus.
So, off I go in search of a UD-11 dock tomorrow.
Or maybe I’ll just shoot one of the other two long lenses . . .