OK.
Some years back, I took a series of air-to-air stills of a mate's new design of light sport aircraft.
If they were just to go into his photo album - no problem.
But .. if they were used commercially (eg, to promote the product), then yes, there would have been trouble
had not the appropriate paperwork and fees been attended to beforehand.
And yes, the pilot would have needed to hold a CPL.
That area seems to be a bit greyer these days - where it seems that anything that appears on an internet forum, for example,
and not clearly marked 'copyright' can be used by anybody for whatever purpose.
.
Last edited by Stanwell; 19th Oct 2016 at 14:17.