11-06-2017, 09:53 AM
I'm surprised how much keepers I get with that lens on the D850 contrary to what I got out of the combination D810 and 20/1.4.
Since I use AF-C most of the time, I can hear when the camera's AF gets clueless about my target. Fabric surfaces, rounded edges, shiny reflections... Otherwise only difficult targets can become impossible ones.
If it seems to be impossible, because AF keeps hunting, I switch to LV and 100% view to focus manually. Seeing how much I shake around, I get an idea what the camera's/lens' combinations problems look like. I can't blame the lens or AF alone, part of that system is me. And the amount of shaking of my hands plays a big role in the so calles focus inconsistencies. Now dave, you don't have as much Art lenses as I do, but I'm aware that if I say I can't confirm what you claim as forged reputation for AF problems, that doesn't say much. Statistically I'm irrelevant. Statistically the ones with AF problems could become relevant, if we knew, how high the percentage actually is, what these owners do with their lenses and how much up to the task their cameras are. Usually I'm only complaining about problems, not telling or counting these lenses which just work.
For me, I'd sum up this way: AF basically is not to be trusted in critical situations, but in general still more helpful and also more reliable than manual focused. On a DSLR, that is. On the Fuji, when I could narrow down and adjust the location the focus field, am comstantly in LV and could switch to manual focus, things would be much different. So, yeah, don't expect too much AF reliability on wide open ultra wide angles on a DSLR.
Since I use AF-C most of the time, I can hear when the camera's AF gets clueless about my target. Fabric surfaces, rounded edges, shiny reflections... Otherwise only difficult targets can become impossible ones.
If it seems to be impossible, because AF keeps hunting, I switch to LV and 100% view to focus manually. Seeing how much I shake around, I get an idea what the camera's/lens' combinations problems look like. I can't blame the lens or AF alone, part of that system is me. And the amount of shaking of my hands plays a big role in the so calles focus inconsistencies. Now dave, you don't have as much Art lenses as I do, but I'm aware that if I say I can't confirm what you claim as forged reputation for AF problems, that doesn't say much. Statistically I'm irrelevant. Statistically the ones with AF problems could become relevant, if we knew, how high the percentage actually is, what these owners do with their lenses and how much up to the task their cameras are. Usually I'm only complaining about problems, not telling or counting these lenses which just work.
For me, I'd sum up this way: AF basically is not to be trusted in critical situations, but in general still more helpful and also more reliable than manual focused. On a DSLR, that is. On the Fuji, when I could narrow down and adjust the location the focus field, am comstantly in LV and could switch to manual focus, things would be much different. So, yeah, don't expect too much AF reliability on wide open ultra wide angles on a DSLR.