This is my first attempt at Airshow photography with a DSLR.
Kit was A900, Minolta 200mm f/2.8 + Kenko 2x Teleplus MC7 DG

ISO200 1/320s f/16

ISO200 1/1000s f/6.5

ISO320 1/1000s f/8
I did not correct the vignetting just so you can see it.
I was surprised that the less sharp images (not these) were not directly related to shutter speed. I think I missed the focus or f/6.5-f/9 is not so good with this lens/converter combination.
Harvey

