Surely the planes are at infinity or beyond? So why focus at all? Choose your focal length and aperture, set it manually to infinity focus, or the hyperfocal distance, and leave it. Or am I missing something?
> On 17 Aug 2021, at 19:12, Larry Colen <[email protected]> wrote: > > 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. -- %(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.
