Nicely done, not a lot of margin error at high speed I would think
Thanks again for your comment Ian! I try to anticipate the line of travel and (more-or-less) pre-focus with a quick adjustment at the last minute, as required – I’m not always successful though.
Prosophos 
Nicely done, not a lot of margin error at high speed I would think
Thanks again for your comment Ian! I try to anticipate the line of travel and (more-or-less) pre-focus with a quick adjustment at the last minute, as required – I’m not always successful though.