hey raceface, awsome info - but i am still a little confused.
what lens/lens's are you going to buy & why?
I am noob when it comes to camera specs, but judging by what you put in your post are you implying that... the most similar lens, to match with a gopro when its set to wide - would be the "Samyang NX 8mm"?
what would you personally use for shooting stills of tandems?
cheers for the detailed info, and for the fast reply! your help is very appreciated, i don't want to waste money on buying the wrong lens.