I have never found a single solution that works all of the time. I would try A-9 AF-S set up in the center, also manual. I agree with Godfrey’s suggestion of planning ahead. Pre-focus so that things are close to in focus, wait until the subject is close to in focus and within the 9 selected points.
> On Aug 17, 2021, at 10:41 AM, Alan C <[email protected]> wrote: > > 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 > -- > %(real_name)s Pentax-Discuss Mail List > To unsubscribe send an email to [email protected] > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- Larry Colen [email protected] -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to [email protected] to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
