The South African Aerobatic Championships is currently on in Phalaborwa with plenty of Photographic opportunities. I've tried everything but just don't seem to be able to focus on fast moving aircraft at height. I get close with MF but AF.S  AF.C are hopeless. Perhaps someone can enlighten me? Perhaps screw drive is too slow? I've tried the K5 with the HD 55-300 @ 300mm & the Sigma 170-500 DG @ 500mm. I can focus just fine on the quarter moon!

The Airfield is less than 1Km from my house! About 40 planes are taking part. The last event like this in Phalaborwa was about 25years ago so this is quite something. Of course there are several wet blankets complaining about the noise.


Alan C
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