Any advice from you guys is good at my level of experience. I have no focus issues but that hyperfocal link explains another way of doing things that at the very least is worth trying. I am flying consistently enough that being close is not challenging to the point of being dangerous for me or the tandem, infact after reviewing the footage I think if I fly any closure I'll need a wider lens (.45 certainly won't do what .3 will at that distance). I have yet to have anyone tell me how much difference a UV filter would make, some camera flyers tell me they use one all the time for all lighting, what's the opinion on this one out there?