Yes , You are correct. I have just purchased and had delivered an 8mm Pixaero lens just before xmas and was supplied with the small mount. Within a few days the pixaero company contacted me about the mistake and wered mailing the correct one and should arrive this week. As the story goes ,I picked up a 2nd hand cgo3+ in Brisbane for $350 which had been fitted with the glass lens the Carolina Drones sells as a standard replacement but sharper images being Glass, it is a good picture. So I thought that the mount will not need chargeing as the lens had plumbers thread seal tape on it. After unscrewing the lens ready for the 8mm one I noticed that the mount had a crack or split on the side, from too much plumbers tape. SO A WARNING JUST 1 TURN AND A SMALL LAP OF TAPE, IF IT GETS HARD TO SCREW IN TO GET ON FOCUS YOU HAVE TOO MUCH TAPE ON IT AND YOU COULD CRACK THE MOUNT. I then thought aha I have the one provided by pixaero , but on examination before dismantling further saw that they were the same length. Tried to screw in and focus like Richard Gilmore and it was at the very beginning of the mount , actually further away that it was in focus, so now it is along wait for the mailman from Russia. I found that Pixaero are very good to deal with and would have no hesitation dealing with them again. With the little trial the image looks great and will suit our inspection company work just fine, we may even do more of our cameras, I am going to ask Pixaero if they do a 10 or 12 mm lens also and possibly try one of them for close inspection work. So now for the lonnnnng wait.
John Hennessy. Keep flying on the green side of the grass.