arbitrage wrote: libraland wrote:
. Also the weather was quite bright and not the usual UK gloom
I'd bet my gear closet that any IQ problems you noticed were due to atmospherics. I'd test again in cloudy weather or in a controlled environment before writing off the lens for IQ vs 200-600.
Atmospheric debate - additional info:
Here is a photo of the scene, taken from my seated location. Arrows indicate locations of birds (Dartford Warblers)
AFC, DMF off, f8/f9, H+, back button focus, hand held but lens supported on knee, various shutter speeds. Green box over eye, SS on, mode 1, Range = full, mechanical shutter (ready for takeoff/land shots with increased shutter speed - didn’t happen)
Out of a burst of say 10 photos, approx 3 were sharp, 3 nearly sharp, 4 not sharp with blur as if camera focussed somewhere else
