02-05-2018, 02:08 PM
You convinced me. I tried my only Sigma OS lens (24-105 Art) and it was calming down the finder view. With the dock, I could not adjust more than AF-points, the rest was in grey.
I think, your copy of the 100-400 is out of order. I also can follow your reasoning about necessity of OS beyond 200mm, but I see the finder image jumping, so I'm not sure what happens and if the picture will be sharp and within the chosen frame.
I think, your copy of the 100-400 is out of order. I also can follow your reasoning about necessity of OS beyond 200mm, but I see the finder image jumping, so I'm not sure what happens and if the picture will be sharp and within the chosen frame.