I always suspected this "camera artifact" problem. I need to learn much more about this problem with rolling shutters that causes skewing of lines.
Jeff.
No worries, Jeff. You fight your corner hard - but maybe I do sometimes wonder whether you ever say to yourself "do I need to be in this corner in the first place?" - . Still good quality if your are springbok!
Perhaps you could do thread (within the confines of your zone - not sure if the protected zone is to protect "you" from "us" or vica versa! - joke!)on camera artifact in golf :
1)Rolling shutters and skew
2)Any camera and parallax error
etc..maybe a few more ...maybe the represenation of the "target line" on DTL shots (use line on ground or vertical shaft in ground with camera behind it...there must be a number of varaitions) - certainly gets confusing for players who use closed footline and open / square shoulders.... where are they aiming! Then you add in a "plane line" with inherent parallax problems...it is a wonder that video is ever helpful !!
How do the ultrafast cameras like the new Casios, EX-1 or 20 or whatever they are, which give 400-1000FPS do it?? Would love to know if you can find out. Putting those cameras and FPS in the right price bracket should lead to the clubface getting an accurate representation in the next few years of golf instruction. Bizhub for the masses
- but maybe I do sometimes wonder whether you ever say to yourself "do I need to be in this corner in the first place?" - 
. Still good quality if your are springbok!
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